执行 Ruff 安全自动修复

web/backend/routers/users.py

@@ -1,6 +1,6 @@
 """用户管理路由（超管）"""
 
-from datetime import datetime, timezone
+from datetime import UTC, datetime
 from uuid import uuid4
 
 from fastapi import APIRouter, Depends, HTTPException
@@ -8,11 +8,11 @@ from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm import Session
 
 from ..database import get_db
-from ..models import Account, AuditLog, HuyaAccount, User
-from ..security import hash_password
-from ..permissions import PERMISSIONS, get_user_permissions
-from ..schemas import UserCreate, UserRename, UserUpdate, UserInfo
 from ..deps import require_permission
+from ..models import Account, AuditLog, HuyaAccount, User
+from ..permissions import PERMISSIONS, get_user_permissions
+from ..schemas import UserCreate, UserInfo, UserRename, UserUpdate
+from ..security import hash_password
 
 router = APIRouter(prefix="/api/users", tags=["用户管理"])
 
@@ -221,7 +221,7 @@ def delete_user(
         )
     )
     user.is_active = False
-    user.deleted_at = datetime.now(timezone.utc)
+    user.deleted_at = datetime.now(UTC)
     user.deleted_username = deleted_username
     # 释放用户名供新用户使用，同时不改变历史任务通过 user.id 保存的归属。
     user.username = f"deleted-{user.id}-{uuid4().hex[:12]}"