1.添加定时任务(每天凌晨四点处理redis记录的删除，存储入mysql持久化操作)

2.修复了prompt中没有用户输入信息的bug
3.优化了更新类接口代码(删除了db.add()代码)

app/controllers/user_controller.py

@@ -35,7 +35,6 @@ async def update_user_handler(user_id:int, user:UserUpdateRequest, db: Session):
     existing_user.tags = user.tags
     existing_user.persona = user.persona
     try:
-        db.add(existing_user)
         db.commit()
         db.refresh(existing_user)
     except Exception as e:
@@ -117,7 +116,6 @@ async def change_bind_hardware_handler(hardware_id, user, db):
         if existing_hardware is None:
             raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="硬件不存在")
         existing_hardware.user_id = user.user_id
-        db.add(existing_hardware)
         db.commit()
         db.refresh(existing_hardware)
     except Exception as e:
@@ -136,7 +134,6 @@ async def update_hardware_handler(hardware_id, hardware, db):
         existing_hardware.mac = hardware.mac
         existing_hardware.firmware = hardware.firmware
         existing_hardware.model = hardware.model
-        db.add(existing_hardware)
         db.commit()
         db.refresh(existing_hardware)
     except Exception as e: