fix ruff

src/common/database/database_model.py

@@ -2,7 +2,6 @@ from peewee import Model, DoubleField, IntegerField, BooleanField, TextField, Fl
 from .database import db
 import datetime
 from src.common.logger import get_logger
-import time
 
 logger = get_logger("database_model")
 # 请在此处定义您的数据库实例。