执行 Ruff 安全自动修复

web/backend/services/account_check_service.py

@@ -8,9 +8,9 @@ import uuid
 import zipfile
 from concurrent.futures import ThreadPoolExecutor, as_completed
 from dataclasses import dataclass, field
-from datetime import datetime, timezone
+from datetime import UTC, datetime
 from types import SimpleNamespace
-from typing import Optional, cast
+from typing import cast
 
 from core.douyu import DouyuLogin, WgapiLoginAPI
 from core.douyu.login import AccountLike
@@ -21,7 +21,7 @@ from ..models import ProxyConfig as ProxyConfigModel
 
 def _now() -> datetime:
     """返回时区感知 UTC 时间。"""
-    return datetime.now(timezone.utc)
+    return datetime.now(UTC)
 
 
 STATUS_LABELS = {
@@ -139,7 +139,7 @@ class AccountCheckRunner:
         self,
         batch: AccountCheckBatch,
         accounts: list[AccountCheckInput],
-        proxy_config: Optional[ProxyConfigModel] = None,
+        proxy_config: ProxyConfigModel | None = None,
     ):
         self.batch = batch
         self.accounts = accounts
@@ -394,7 +394,7 @@ class AccountCheckRegistry:
         max_login_retries: int,
         max_total_time: float,
         use_proxy: bool = False,
-        proxy_config: Optional[ProxyConfigModel] = None,
+        proxy_config: ProxyConfigModel | None = None,
     ) -> AccountCheckRunner:
         batch_id = uuid.uuid4().hex[:12]
         normalized_retries = max_login_retries if max_login_retries > 0 else 20

web/backend/services/account_service.py

@@ -7,7 +7,6 @@ from sqlalchemy.orm import Session
 
 from ..models import Account, LoginTask
 
-
 EMAIL_PATTERN = re.compile(r"^[^\s@|]+@[^\s@|]+\.[^\s@|]+$")
 
 

web/backend/services/audit_service.py

@@ -10,7 +10,6 @@ from sqlalchemy.orm import Session
 
 from ..models import AuditLog, User
 
-
 _SENSITIVE_KEY_PARTS = (
     "cookie",
     "token",

web/backend/services/cookie_check_service.py

@@ -1,10 +1,9 @@
 """斗鱼 Cookie 有效性检测服务。"""
 
-from datetime import datetime, timezone
+from datetime import UTC, datetime
 
 import requests
 
-
 CHECK_UA = (
     "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 "
     "(KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.36"
@@ -15,7 +14,7 @@ USER_LEVEL_API = "https://www.douyu.com/japi/interactnc/web/userLevel/userLevelD
 
 def check_douyu_cookie(cookie: str) -> dict:
     """检测斗鱼 Cookie 有效性，鱼丸与等级接口均通过才算有效。"""
-    checked_at = datetime.now(timezone.utc)
+    checked_at = datetime.now(UTC)
     base = {
         "checked_at": checked_at,
         "fish_ball": None,

web/backend/services/douyu_runner.py

@@ -7,17 +7,21 @@ from concurrent.futures import ThreadPoolExecutor, as_completed
 from sqlalchemy.orm import joinedload
 
 from core.douyu import DouyuActivityError
+
 from ..database import SessionLocal
 from ..models import DouyuTask
 from .cookie_check_service import check_douyu_cookie
-from .douyu_service import latest_success_login_task, update_account_profile_from_cookie
-from .douyu_runner_core import DouyuBatchRunnerCore, douyu_batch_registry  # noqa: F401  (douyu_batch_registry 供 routers 重导出)
 from .douyu_runner_bind import BindMixin
-from .douyu_runner_manual import ManualMixin
-from .douyu_runner_gold import GoldMixin
+from .douyu_runner_core import (  # noqa: F401  (douyu_batch_registry 供 routers 重导出)
+    DouyuBatchRunnerCore,
+    douyu_batch_registry,
+)
 from .douyu_runner_donate import DonateMixin
+from .douyu_runner_gold import GoldMixin
 from .douyu_runner_goods import GoodsMixin
+from .douyu_runner_manual import ManualMixin
 from .douyu_runner_xpd import XpdMixin
+from .douyu_service import latest_success_login_task, update_account_profile_from_cookie
 
 
 class DouyuBatchRunner(

web/backend/services/douyu_runner_bind.py

@@ -1,16 +1,16 @@
 """斗鱼任务执行器：角色绑定（由 douyu_runner.py 按功能域拆分）。"""
 
 from __future__ import annotations
+
 import time
-from datetime import datetime, timezone
-from typing import Any, TYPE_CHECKING
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any
+
 from sqlalchemy.orm import Session
 
 from core.douyu import DouyuActivityClient, DouyuActivityError
-from ..models import Account, DouyuTask
 
-if TYPE_CHECKING:
-    from .douyu_runner import DouyuBatchRunner
+from ..models import Account, DouyuTask
 
 DOUYU_LEGACY_BIND_ACT_ALIAS = "20250213NQCYX"
 DOUYU_BIND_ROLE_POLL_SECONDS = 65
@@ -126,7 +126,7 @@ class BindMixin:
         if str(bind_info.get("api_version") or "") == "esports":
             can_change_time = cls._to_int(bind_info.get("can_change_time"))
             if can_change_time is not None:
-                return can_change_time <= int(datetime.now(timezone.utc).timestamp())
+                return can_change_time <= int(datetime.now(UTC).timestamp())
         wait_time = cls._to_int(bind_info.get("change_role_wait_time"))
         if wait_time is not None and wait_time > 0:
             return False
@@ -236,7 +236,7 @@ class BindMixin:
             bind_info.get("change_role_wait_time")
         )
         account.bind_status = status
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
 
     def _apply_esports_bind_info_to_account(
         self, account: Account, bind_info: dict, status: str
@@ -252,7 +252,7 @@ class BindMixin:
         )
         account.esports_can_change_time = self._to_int(bind_info.get("can_change_time"))
         account.esports_bind_status = status
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
 
     def _esports_bind_state(
         self,
@@ -503,7 +503,7 @@ class BindMixin:
                 role_name = snapshot["role_name"]
                 # 待确认角色只回传前端展示，不写入账号表，避免“未换绑成功但角色信息已变新”
                 account.bind_status = "game_queried"
-                account.updated_at = datetime.now(timezone.utc)
+                account.updated_at = datetime.now(UTC)
                 self._push_log(
                     "success", f"识别到待确认角色: {role_name} (act={query_alias})"
                 )
@@ -688,7 +688,7 @@ class BindMixin:
             "bind_polling": True,
         }
         account.bind_status = "bind_qr_generated"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         # 关键：先把二维码 progress 出去，前端 running 期间即可弹窗扫码。
         self._update_task_progress(
             db, task, "running", "已生成绑定二维码，等待扫码绑定", result
@@ -822,7 +822,7 @@ class BindMixin:
                 self._apply_bind_info_to_account(account, before_bound, "game_queried")
             else:
                 account.bind_status = "game_queried"
-                account.updated_at = datetime.now(timezone.utc)
+                account.updated_at = datetime.now(UTC)
             self._mark_task(
                 db,
                 task,
@@ -882,7 +882,7 @@ class BindMixin:
                     )
                 else:
                     account.bind_status = "game_queried"
-                    account.updated_at = datetime.now(timezone.utc)
+                    account.updated_at = datetime.now(UTC)
                 self._mark_task(
                     db,
                     task,
@@ -917,7 +917,7 @@ class BindMixin:
                 )
             else:
                 account.bind_status = "bind_confirmed"
-                account.updated_at = datetime.now(timezone.utc)
+                account.updated_at = datetime.now(UTC)
             self._mark_task(
                 db,
                 task,
@@ -1027,7 +1027,7 @@ class BindMixin:
             "bind_phase": "switching_role",
         }
         account.esports_bind_status = "esports_role_switching"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._mark_task(
             db,
             task,
@@ -1052,7 +1052,7 @@ class BindMixin:
             return
 
         account.esports_bind_status = "esports_bind_confirming"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._update_task_progress(
             db,
             task,
@@ -1191,7 +1191,7 @@ class BindMixin:
             self._apply_bind_info_to_account(account, bind_info, "game_queried")
         else:
             account.bind_status = "game_queried" if has_pending else "game_not_bound"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
         result = {
             "act_alias": source_alias,
             "query_act_alias": source_alias,
@@ -1281,7 +1281,7 @@ class BindMixin:
         wait_time = snapshot["change_role_wait_time"]
         account.change_role_wait_time = wait_time
         account.bind_status = "change_time_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         source_alias = str(bind_info.get("act_alias") or "")
         wait_text = self._format_wait_time(wait_time)
         can_change = snapshot["can_change_role"]

web/backend/services/douyu_runner_core.py

@@ -5,27 +5,30 @@ from __future__ import annotations
 import asyncio
 import threading
 import time
-from datetime import datetime, timezone
-from typing import Optional, TYPE_CHECKING
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING
 
 from loguru import logger
 from sqlalchemy.orm import Session
 
 from core.douyu import DouyuActivityClient
 from core.douyu.proxy_fetcher import ProxyFetcher
+
 from ..models import (
     Account,
     DouyuEsportsGoodsSnapshot,
     DouyuGoodsSnapshot,
     DouyuTask,
     DouyuXpdGoodsSnapshot,
+)
+from ..models import (
     ProxyConfig as ProxyConfigModel,
 )
 from .douyu_service import (
     DOUYU_CONFIG_FIELDS,
     douyu_config_value,
-    ensure_douyu_config,
     douyu_task_payload,
+    ensure_douyu_config,
 )
 
 if TYPE_CHECKING:
@@ -62,9 +65,9 @@ class DouyuBatchRunnerCore:
         db: Session,
         batch_id: str,
         task_type: str,
-        payload: Optional[dict] = None,
-        log_queue: Optional[asyncio.Queue] = None,
-        loop: Optional[asyncio.AbstractEventLoop] = None,
+        payload: dict | None = None,
+        log_queue: asyncio.Queue | None = None,
+        loop: asyncio.AbstractEventLoop | None = None,
         concurrency: int = 3,
     ):
         self.db = db
@@ -212,7 +215,7 @@ class DouyuBatchRunnerCore:
         task.message = message[:512]
         if result is not None:
             task.result = result
-        task.finished_at = datetime.now(timezone.utc)
+        task.finished_at = datetime.now(UTC)
         db.commit()
         self._push_task_event(task)
 
@@ -232,7 +235,7 @@ class DouyuBatchRunnerCore:
         self._push_task_event(task)
 
     def _upsert_goods(self, db: Session, goods: list[dict]) -> None:
-        now = datetime.now(timezone.utc)
+        now = datetime.now(UTC)
         for raw in goods:
             commodity_id = str(raw.get("commodityId") or raw.get("commodity_id") or "")
             if not commodity_id:
@@ -254,7 +257,7 @@ class DouyuBatchRunnerCore:
         db.commit()
 
     def _upsert_esports_goods(self, db: Session, goods: list[dict]) -> None:
-        now = datetime.now(timezone.utc)
+        now = datetime.now(UTC)
         for raw in goods:
             commodity_id = str(raw.get("commodityId") or raw.get("commodity_id") or "")
             if not commodity_id:
@@ -276,7 +279,7 @@ class DouyuBatchRunnerCore:
 
     def _upsert_xpd_goods(self, db: Session, goods: list[dict]) -> None:
         """同步和平小店商品快照，移除上一次热门抢购等遗留商品。"""
-        now = datetime.now(timezone.utc)
+        now = datetime.now(UTC)
         commodity_ids = {
             str(raw.get("commodity_id") or raw.get("iGoodsId") or "") for raw in goods
         }

web/backend/services/douyu_runner_donate.py

@@ -1,15 +1,15 @@
 """斗鱼任务执行器：送礼（由 douyu_runner.py 按功能域拆分）。"""
 
 from __future__ import annotations
-from datetime import datetime, timezone
-from typing import Any, TYPE_CHECKING
+
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any
+
 from sqlalchemy.orm import Session
 
 from core.douyu import DouyuActivityClient
-from ..models import Account, DouyuTask
 
-if TYPE_CHECKING:
-    from .douyu_runner import DouyuBatchRunner
+from ..models import Account, DouyuTask
 
 DOUYU_GIFT_POINTS_REFRESH_TIMES = 3
 DOUYU_GIFT_POINTS_REFRESH_INTERVAL = 2
@@ -177,7 +177,7 @@ class DonateMixin:
             result["refresh_errors"] = refresh_errors
 
         account.esports_bind_status = "esports_gift_donated"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         message = f"赠送{gift_name}成功: {gift_count}"
         if account.gold_balance is not None:
             message += f"，鱼翅余额: {account.gold_balance}"
@@ -273,7 +273,7 @@ class DonateMixin:
         if refresh_errors:
             result["refresh_errors"] = refresh_errors
         account.bind_status = "gift_donated"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         message = f"赠送精英令成功: {gift_count}"
         if account.gold_balance is not None:
             message += f"，鱼翅余额: {account.gold_balance}"

web/backend/services/douyu_runner_gold.py

@@ -1,11 +1,13 @@
 """斗鱼任务执行器：鱼翅充值（由 douyu_runner.py 按功能域拆分）。"""
 
 from __future__ import annotations
+
 import re
 import time
+from datetime import UTC, datetime
 from decimal import Decimal
-from datetime import datetime, timezone
-from typing import Any, TYPE_CHECKING, cast
+from typing import TYPE_CHECKING, Any, cast
+
 from sqlalchemy.orm import Session
 
 from core.douyu import (
@@ -14,12 +16,10 @@ from core.douyu import (
     FishFinRechargeConfig,
     FishFinRechargeError,
 )
-from ..models import Account, DouyuTask
-from .douyu_service import update_account_profile_from_cookie
-from .douyu_runner_core import DOUYU_PAYMENT_POLL_INTERVAL, DOUYU_PAYMENT_POLL_SECONDS
 
-if TYPE_CHECKING:
-    from .douyu_runner import DouyuBatchRunner
+from ..models import Account, DouyuTask
+from .douyu_runner_core import DOUYU_PAYMENT_POLL_INTERVAL, DOUYU_PAYMENT_POLL_SECONDS
+from .douyu_service import update_account_profile_from_cookie
 
 
 class GoldMixin:
@@ -45,7 +45,7 @@ class GoldMixin:
         exchange = client.exchange_balance()
         account.gold_balance = self._to_int(gold.get("gold"))
         account.exchange_balance = self._to_int(exchange.get("count"))
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         return {
             "gold_balance": account.gold_balance,
             "exchange_balance": account.exchange_balance,
@@ -266,7 +266,7 @@ class GoldMixin:
             amount=amount, pay_type=int(config["gold_pay_type"])
         )
         account.bind_status = "gold_qr_created"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._update_task_progress(
             db, task, "running", f"鱼翅 {amount} 元支付码已生成，等待到账", result
         )
@@ -278,7 +278,7 @@ class GoldMixin:
             return
         if recharged:
             account.bind_status = "gold_recharged"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
             self._mark_task(
                 db,
                 task,
@@ -414,7 +414,7 @@ class GoldMixin:
             )
             return
         account.bind_status = "gold_api_order_created"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._update_task_progress(
             db, task, "running", "供应商直充订单已创建，等待到账", result
         )
@@ -425,7 +425,7 @@ class GoldMixin:
             return
         if status == 2:
             account.bind_status = "gold_recharged"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
             self._mark_task(db, task, "success", "供应商直充成功", result)
             return
         if status in {3, 4}:
@@ -439,7 +439,7 @@ class GoldMixin:
         client = self._client(cookie)
         result = self._refresh_account_gold_balance(client, account)
         account.bind_status = "gold_balance_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._mark_task(
             db,
             task,

web/backend/services/douyu_runner_goods.py

@@ -1,17 +1,17 @@
 """斗鱼任务执行器：商城兑换（由 douyu_runner.py 按功能域拆分）。"""
 
 from __future__ import annotations
+
 import random
 import time
-from datetime import datetime, timezone
-from typing import Any, TYPE_CHECKING
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any
+
 from sqlalchemy.orm import Session
 
 from core.douyu import DouyuActivityClient, DouyuActivityError
-from ..models import Account, DouyuEsportsGoodsSnapshot, DouyuGoodsSnapshot, DouyuTask
 
-if TYPE_CHECKING:
-    from .douyu_runner import DouyuBatchRunner
+from ..models import Account, DouyuEsportsGoodsSnapshot, DouyuGoodsSnapshot, DouyuTask
 
 # 兑换节奏与重试（对齐 8.30 浏览器抓包：锁单->支付间隔约 2.2~4.2s；火爆类错误要长退避而不是秒级连打）
 DOUYU_EXCHANGE_PRE_CREATE_JITTER = (0.3, 1.2)
@@ -65,7 +65,7 @@ class GoodsMixin:
         goods = result["goods"]
         self._upsert_goods(db, goods)
         account.bind_status = account.bind_status or "active"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._mark_task(
             db,
             task,
@@ -91,7 +91,7 @@ class GoodsMixin:
         goods = result["goods"]
         self._upsert_esports_goods(db, goods)
         account.esports_bind_status = "esports_goods_refreshed"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._mark_task(
             db,
             task,
@@ -131,7 +131,7 @@ class GoodsMixin:
             .first()
         )
         account.bind_status = "goods_locked"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         expire_seconds = result.get("expire_seconds")
         expire_text = f"，{expire_seconds} 秒内有效" if expire_seconds else ""
         self._mark_task(
@@ -181,7 +181,7 @@ class GoodsMixin:
                 .first()
             )
         account.bind_status = "goods_exchanged"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         result = {
             "commodity_id": commodity_id,
             "order_id": order_id,
@@ -346,7 +346,7 @@ class GoodsMixin:
                 finish_failed(f"预约到货失败: {exc}")
                 return
             account.bind_status = "goods_subscribed"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
             self._mark_task(
                 db,
                 task,
@@ -383,7 +383,7 @@ class GoodsMixin:
                 finish_failed(f"预兑失败: {exc}")
                 return
             account.bind_status = "goods_pre_exchanged"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
             self._mark_task(
                 db,
                 task,
@@ -485,7 +485,7 @@ class GoodsMixin:
             }
         )
         account.bind_status = "goods_exchanged"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         # 兑换成功后自动刷新积分，更新账号最新积分信息（失败不阻断兑换成功）
         points_refresh = None
         try:
@@ -575,7 +575,7 @@ class GoodsMixin:
             result["esports_points_refresh_error"] = str(exc)
 
         account.esports_bind_status = "esports_goods_exchanged"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         name = (goods.name if goods else "") or commodity_id
         message = f"兑换电竞皮肤成功: {name}"
         if quantity > 1:
@@ -608,7 +608,7 @@ class GoodsMixin:
             else f"限兑 {len(names)} 个: {', '.join(names[:5])}"
         )
         account.bind_status = "limited_goods_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._mark_task(
             db,
             task,
@@ -624,7 +624,7 @@ class GoodsMixin:
         result = client.exchange_records(manual_id=str(config["manual_id"]))
         records = result["records"]
         account.bind_status = "exchange_records_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._mark_task(
             db,
             task,
@@ -639,7 +639,7 @@ class GoodsMixin:
         client = self._client(cookie)
         token = client.csrf_token()
         account.bind_status = "csrf_token_ready"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._mark_task(
             db,
             task,

web/backend/services/douyu_runner_manual.py

@@ -1,18 +1,18 @@
 """斗鱼任务执行器：手册开通与积分（由 douyu_runner.py 按功能域拆分）。"""
 
 from __future__ import annotations
+
 import time
-from datetime import datetime, timezone
-from typing import Any, TYPE_CHECKING
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any
+
 from sqlalchemy.orm import Session
 
 from core.douyu import DouyuActivityClient, DouyuActivityError
-from ..models import Account, DouyuTask
-from .douyu_service import account_uid, update_account_profile_from_cookie
-from .douyu_runner_core import DOUYU_PAYMENT_POLL_INTERVAL, DOUYU_PAYMENT_POLL_SECONDS
 
-if TYPE_CHECKING:
-    from .douyu_runner import DouyuBatchRunner
+from ..models import Account, DouyuTask
+from .douyu_runner_core import DOUYU_PAYMENT_POLL_INTERVAL, DOUYU_PAYMENT_POLL_SECONDS
+from .douyu_service import account_uid, update_account_profile_from_cookie
 
 
 class ManualMixin:
@@ -54,7 +54,7 @@ class ManualMixin:
         account.uid = uid
         account.points = points
         update_account_profile_from_cookie(account, cookie)
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         return {"points": points, "points_query": result}
 
     def _wait_points_after_payment(
@@ -121,7 +121,7 @@ class ManualMixin:
         manual_type = self._to_int(result.get("manual_type"))
         manual_score = self._to_int(result.get("manual_score"))
         account.esports_points = manual_score
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         return {
             "esports_manual_type": manual_type,
             "esports_manual_score": manual_score,
@@ -220,7 +220,7 @@ class ManualMixin:
             room_id=str(config["room_id"]),
         )
         account.bind_status = "elite_qr_created"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._update_task_progress(
             db, task, "running", "精英宝典支付码已生成，等待开通到账", result
         )
@@ -232,7 +232,7 @@ class ManualMixin:
             return
         if opened:
             account.bind_status = "elite_opened"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
             self._mark_task(
                 db, task, "success", f"精英宝典已开通，积分: {account.points}", result
             )
@@ -281,7 +281,7 @@ class ManualMixin:
 
         if baseline_manual_type is not None and baseline_manual_type >= 1:
             account.esports_bind_status = "esports_opened"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
             self._mark_task(
                 db,
                 task,
@@ -299,7 +299,7 @@ class ManualMixin:
         )
         result.update(baseline_result)
         account.esports_bind_status = "esports_qr_created"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._update_task_progress(
             db, task, "running", "电竞手册支付码已生成，等待开通到账", result
         )
@@ -318,7 +318,7 @@ class ManualMixin:
             return
         if opened:
             account.esports_bind_status = "esports_opened"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
             self._mark_task(
                 db,
                 task,
@@ -353,7 +353,7 @@ class ManualMixin:
         client = self._client(cookie)
         result = self._refresh_esports_handbook(client, account, manual_id=manual_id)
         account.esports_bind_status = "esports_points_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         points = result["esports_points"]
         self._mark_task(
             db,
@@ -370,7 +370,7 @@ class ManualMixin:
         ctn = client.acf_ccn(refresh_subscribe=False)
         result = self._refresh_account_points(client, account, cookie, ctn=ctn)
         account.bind_status = "points_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         points = result["points"]
         self._mark_task(
             db,

web/backend/services/douyu_runner_xpd.py

@@ -1,16 +1,16 @@
 """斗鱼任务执行器：和平小店（由 douyu_runner.py 按功能域拆分）。"""
 
 from __future__ import annotations
+
 import time
-from datetime import datetime, timezone
-from typing import Any, TYPE_CHECKING, cast
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any, cast
+
 from sqlalchemy.orm import Session
 
 from core.douyu import DouyuActivityClient, DouyuActivityError
-from ..models import Account, DouyuTask, DouyuXpdGoodsSnapshot
 
-if TYPE_CHECKING:
-    from .douyu_runner import DouyuBatchRunner
+from ..models import Account, DouyuTask, DouyuXpdGoodsSnapshot
 
 DOUYU_XPD_BIND_POLL_SECONDS = 300
 DOUYU_XPD_BIND_POLL_INTERVAL = 5
@@ -72,7 +72,7 @@ class XpdMixin:
         account.xpd_role_id = str(role.get("role_id") or "") or account.xpd_role_id
         account.xpd_plat_id = self._to_int(role.get("plat_id"))
         account.xpd_area_id = area_id
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
 
     def _execute_query_xpd_role(
         self,
@@ -126,7 +126,7 @@ class XpdMixin:
             return
         result = client.xpd_bind_qr(act_alias=act_alias)
         account.xpd_bind_status = "xpd_bind_qr_ready"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         db.commit()
         # 记录绑定前状态：已绑定账号生成二维码后必须等扫码换绑，不能立即成功
         try:
@@ -242,7 +242,7 @@ class XpdMixin:
         role_name = str(result.get("role_name") or "")
         if not result.get("bind_role") or not role_name:
             account.xpd_bind_status = "xpd_not_bound"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
             db.commit()
             self._mark_task(
                 db, task, "failed", "尚未检测到小店绑定角色，请先扫码绑定", result
@@ -258,12 +258,12 @@ class XpdMixin:
                 )
             else:
                 account.xpd_game_name = role_name
-                account.updated_at = datetime.now(timezone.utc)
+                account.updated_at = datetime.now(UTC)
         except Exception:
             account.xpd_game_name = role_name
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
         account.xpd_bind_status = "xpd_bound"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         db.commit()
         result["xpd_pending_confirm"] = False
         result["xpd_bound"] = True
@@ -427,7 +427,7 @@ class XpdMixin:
         fragments = result.get("fragments")
         account.xpd_fragments = fragments
         account.xpd_bind_status = "xpd_fragments_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         db.commit()
         if fragments is None:
             self._mark_task(db, task, "failed", "未获取到小店扭蛋碎片数量")
@@ -459,7 +459,7 @@ class XpdMixin:
             act_id=str(config["xpd_act_id"]),
         )
         account.xpd_bind_status = "xpd_purchase_records_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         total = result.get("total") or len(result.get("records") or [])
         self._mark_task(
             db,
@@ -561,7 +561,7 @@ class XpdMixin:
         if pay_type == 5 and result.get("new_balance") is not None:
             account.xpd_fragments = result["new_balance"]
         account.xpd_bind_status = "xpd_goods_exchanged"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         db.commit()
 
         currency = "点券" if pay_type == 1 else "扭蛋碎片"

web/backend/services/douyu_service.py

@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 import uuid
-from datetime import datetime, timezone
+from datetime import UTC, datetime
 
 from sqlalchemy import select
 from sqlalchemy.orm import Session
@@ -13,7 +13,6 @@ from core.douyu.cookie_utils import cookie_value
 
 from ..models import Account, DouyuConfig, DouyuTask, LoginTask
 
-
 SUPPORTED_DOUYU_TASK_TYPES = {
     "get_bind_qr": "获取绑定二维码",
     "confirm_bind": "确认绑定",
@@ -302,7 +301,7 @@ def cleanup_orphan_douyu_tasks(
     tasks = query.all()
     if not tasks:
         return 0
-    now = datetime.now(timezone.utc)
+    now = datetime.now(UTC)
     for task in tasks:
         task.status = "stopped"
         task.message = message
@@ -426,7 +425,7 @@ def douyu_task_payload(task: DouyuTask, *, include_detail: bool = False) -> dict
         if value is None:
             return None
         if value.tzinfo is None:
-            value = value.replace(tzinfo=timezone.utc)
+            value = value.replace(tzinfo=UTC)
         return value.isoformat()
 
     return {

web/backend/services/huya_register_runner.py

@@ -6,8 +6,7 @@ import threading
 import uuid
 from concurrent.futures import ThreadPoolExecutor, as_completed
 from dataclasses import dataclass, field
-from datetime import datetime, timezone
-from typing import Optional
+from datetime import UTC, datetime
 
 from core.douyu.proxy_fetcher import ProxyFetcher
 from core.huya.auto_register import HuyaAutoRegisterResult, register_huya_with_sms_line
@@ -17,13 +16,18 @@ from core.sms_provider import SmsLine
 from ..database import SessionLocal
 from ..models import (
     HuyaRegisterBatch as HuyaRegisterBatchModel,
+)
+from ..models import (
     HuyaRegisterItem as HuyaRegisterItemModel,
+)
+from ..models import (
     HuyaRegisterSuccessLog,
+)
+from ..models import (
     ProxyConfig as ProxyConfigModel,
 )
 from .huya_service import upsert_huya_cookie
 
-
 # 运行中状态：服务中断后视为未完成，可继续
 RUNNING_ITEM_STATUSES = frozenset({"sending", "waiting", "changing", "logging"})
 # 续跑（continue）：只跑「还没跑完」的，不重试已明确失败(error)、不重跑成功(success)
@@ -37,7 +41,7 @@ TERMINAL_BATCH_STATUSES = frozenset({"finished", "stopped", "error", "interrupte
 
 
 def _now() -> datetime:
-    return datetime.now(timezone.utc)
+    return datetime.now(UTC)
 
 
 def _cookie_preview(cookie: str) -> str:
@@ -409,7 +413,7 @@ class HuyaRegisterRunner:
         self,
         batch: HuyaRegisterBatch,
         sms_lines: list[SmsLine],
-        proxy_config: Optional[ProxyConfigModel] = None,
+        proxy_config: ProxyConfigModel | None = None,
         *,
         item_indices: list[int] | None = None,
     ):
@@ -812,7 +816,7 @@ class HuyaRegisterRegistry:
         password_prefix: str = "hy",
         fixed_password: str = "",
         use_proxy: bool = False,
-        proxy_config: Optional[ProxyConfigModel] = None,
+        proxy_config: ProxyConfigModel | None = None,
     ) -> HuyaRegisterRunner:
         batch_id = uuid.uuid4().hex[:12]
         concurrency = max(1, min(int(concurrency or 1), 5))
@@ -918,7 +922,7 @@ class HuyaRegisterRegistry:
     def retry(
         self,
         batch_id: str,
-        proxy_config: Optional[ProxyConfigModel] = None,
+        proxy_config: ProxyConfigModel | None = None,
         *,
         mode: str = "continue",
         concurrency: int | None = None,

web/backend/services/huya_runner.py

@@ -3,19 +3,22 @@
 from __future__ import annotations
 
 from concurrent.futures import ThreadPoolExecutor, as_completed
+from datetime import UTC, datetime
 
 from sqlalchemy.orm import joinedload
 
-from ..database import SessionLocal
-from datetime import datetime, timezone
-
-from ..models import HuyaAccount, HuyaTask
 from core.huya.cookie_utils import normalize_huya_cookie
-from .huya_service import HUYA_CONFIG_FIELDS, ensure_huya_config, huya_config_value
-from .huya_runner_core import HuyaBatchRunnerCore, huya_batch_registry  # noqa: F401  (huya_batch_registry 供 routers 重导出)
+
+from ..database import SessionLocal
+from ..models import HuyaAccount, HuyaTask
 from .huya_runner_bind import BindMixin
+from .huya_runner_core import (  # noqa: F401  (huya_batch_registry 供 routers 重导出)
+    HuyaBatchRunnerCore,
+    huya_batch_registry,
+)
 from .huya_runner_goods import GoodsMixin
 from .huya_runner_recharge import RechargeMixin
+from .huya_service import HUYA_CONFIG_FIELDS, ensure_huya_config, huya_config_value
 
 
 class HuyaBatchRunner(
@@ -148,7 +151,7 @@ class HuyaBatchRunner(
                 if not account:
                     task.status = "error"
                     task.message = "账号不存在"
-                    task.finished_at = datetime.now(timezone.utc)
+                    task.finished_at = datetime.now(UTC)
                     continue
                 task.status = "pending"
                 task.message = "等待执行"

web/backend/services/huya_runner_bind.py

@@ -1,20 +1,17 @@
 """虎牙任务执行器：角色绑定（由 huya_runner.py 按功能域拆分）。"""
 
 from __future__ import annotations
+
 import time
-from datetime import datetime, timezone
-from typing import Any
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any
 
 from sqlalchemy.orm import Session
 
 from core.huya import HuyaHttpClient
+
 from ..models import HuyaAccount, HuyaTask
 
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from .huya_runner import HuyaBatchRunner
-
 HUYA_BIND_ROLE_POLL_SECONDS = 180
 HUYA_BIND_ROLE_POLL_INTERVAL = 3
 HUYA_BIND_ZT_UUID = "b02faae1"
@@ -77,7 +74,7 @@ class BindMixin:
         account_data = bind_status.accountData
         is_bound = bool(account_data.isBindAcount and account_data.isBindRole)
         change_time = int(account_data.changBindTime or 0)
-        now = int(datetime.now(timezone.utc).timestamp())
+        now = int(datetime.now(UTC).timestamp())
         can_change = not is_bound or not change_time or change_time <= now
         return {
             "is_bound": is_bound,
@@ -150,7 +147,7 @@ class BindMixin:
         account.status = status
         account.game_name = role_name or account.game_name
         account.game_channel = self._role_channel(bind_status) or account.game_channel
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
 
     @staticmethod
     def _bind_redirect_url(config_info: dict) -> str:
@@ -439,7 +436,7 @@ class BindMixin:
         account.game_name = role_info["role_name"] or account.game_name
         account.game_channel = self._role_channel(bind_status) or account.game_channel
         account.nickname = profile_nick or account.nickname
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
 
         # 生成二维码后自动轮询扫码/角色，避免用户必须手动点「查询角色」。
         role_name, result = self._wait_bind_role_result(
@@ -545,7 +542,7 @@ class BindMixin:
             return
 
         account.status = "game_not_bound"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._mark_task(worker_db, task, "success", "未绑定游戏角色", result)
 
     def _execute_confirm_bind(

web/backend/services/huya_runner_core.py

@@ -5,11 +5,11 @@ from __future__ import annotations
 import asyncio
 import threading
 import time
-from datetime import datetime, timezone
-from typing import Optional
+from datetime import UTC, datetime
 
 from loguru import logger
 from sqlalchemy.orm import Session
+
 from ..models import HuyaTask
 from .huya_service import cookie_value
 
@@ -29,9 +29,9 @@ class HuyaBatchRunnerCore:
         db: Session,
         batch_id: str,
         task_type: str,
-        payload: Optional[dict] = None,
-        log_queue: Optional[asyncio.Queue] = None,
-        loop: Optional[asyncio.AbstractEventLoop] = None,
+        payload: dict | None = None,
+        log_queue: asyncio.Queue | None = None,
+        loop: asyncio.AbstractEventLoop | None = None,
         concurrency: int = 3,
     ):
         self.db = db
@@ -123,12 +123,12 @@ class HuyaBatchRunnerCore:
         task: HuyaTask,
         status: str,
         message: str,
-        result: Optional[dict] = None,
+        result: dict | None = None,
     ):
         task.status = status
         task.message = message
         task.result = result
-        task.finished_at = datetime.now(timezone.utc)
+        task.finished_at = datetime.now(UTC)
         worker_db.commit()
 
     def _update_task_progress(
@@ -137,7 +137,7 @@ class HuyaBatchRunnerCore:
         task: HuyaTask,
         status: str,
         message: str,
-        result: Optional[dict] = None,
+        result: dict | None = None,
     ):
         task.status = status
         task.message = message

web/backend/services/huya_runner_goods.py

@@ -1,17 +1,16 @@
 """虎牙任务执行器：积分与商城（由 huya_runner.py 按功能域拆分）。"""
 
 from __future__ import annotations
+
 import time
-from datetime import datetime, timezone
-from typing import Any, TYPE_CHECKING
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any
 
 from sqlalchemy.orm import Session
 
 from core.huya import HuyaHttpClient
-from ..models import HuyaAccount, HuyaGoodsSnapshot, HuyaTask
 
-if TYPE_CHECKING:
-    from .huya_runner import HuyaBatchRunner
+from ..models import HuyaAccount, HuyaGoodsSnapshot, HuyaTask
 
 
 class GoodsMixin:
@@ -83,7 +82,7 @@ class GoodsMixin:
         points = response.available_score
         account.points = points
         account.status = "points_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         self._mark_task(worker_db, task, "success", f"积分: {points}", result)
 
     def _execute_query_exchange_records(
@@ -144,7 +143,7 @@ class GoodsMixin:
                 item["score_text"] = f"{int(item.get('score') or 0)}积分"
 
         account.status = "exchange_records_queried"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         count = len(records)
         message = f"兑换记录 {count} 条" if count else "暂无兑换记录"
         self._mark_task(worker_db, task, "success", message, result)
@@ -202,7 +201,7 @@ class GoodsMixin:
             for item in result.get("goods", [])
             if item.get("product_id") and item.get("name")
         ]
-        now = datetime.now(timezone.utc)
+        now = datetime.now(UTC)
         worker_db.query(HuyaGoodsSnapshot).delete(synchronize_session=False)
         for item in goods:
             worker_db.add(
@@ -290,7 +289,7 @@ class GoodsMixin:
                 "product_id": str(product_id),
                 "product_name": product_name,
                 "scheduled_at": scheduled_at.isoformat() if scheduled_at else "",
-                "executed_at": datetime.now(timezone.utc).isoformat(),
+                "executed_at": datetime.now(UTC).isoformat(),
                 "goods": snapshot.raw if snapshot else None,
             }
         )
@@ -305,6 +304,6 @@ class GoodsMixin:
             return
 
         account.status = "goods_exchanged"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         message = response.msg or f"兑换成功: {product_name}"
         self._mark_task(worker_db, task, "success", message, result)

web/backend/services/huya_runner_recharge.py

@@ -1,13 +1,15 @@
 """虎牙任务执行器：充值（由 huya_runner.py 按功能域拆分）。"""
 
 from __future__ import annotations
+
 import time
-from datetime import datetime, timezone
-from typing import Any, TYPE_CHECKING
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any
 
 from sqlalchemy.orm import Session
 
 from core.huya import HuyaHttpClient
+
 from ..models import HuyaAccount, HuyaRechargeGoodsSnapshot, HuyaTask
 
 HUYA_RECHARGE_ACT_ID = 25135
@@ -25,9 +27,6 @@ HUYA_RECHARGE_EXTRA_PRODUCTS = [
 ]
 from .huya_runner_core import HUYA_RECHARGE_SOURCE_ID
 
-if TYPE_CHECKING:
-    from .huya_runner import HuyaBatchRunner
-
 
 class RechargeMixin:
     """充值域：充值商品、下单与到账轮询。"""
@@ -103,7 +102,7 @@ class RechargeMixin:
                 status=0,
                 timeout=10.0,
             )
-            checked_at = datetime.now(timezone.utc).isoformat()
+            checked_at = datetime.now(UTC).isoformat()
             if resp is not None and getattr(resp, "orders", None):
                 for order in resp.orders:
                     if str(getattr(order, "orderId", "")) != order_id_text:
@@ -248,7 +247,7 @@ class RechargeMixin:
             )
             return
 
-        now = datetime.now(timezone.utc)
+        now = datetime.now(UTC)
         goods: list[dict] = []
         failed: list[dict] = []
 
@@ -501,7 +500,7 @@ class RechargeMixin:
             "order": order_result,
         }
         account.status = "recharge_order_created"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         message = f"{product_name} x{count} {self._pay_channel_label(pay_channel)} {result['amount_text']}"
         self._update_task_progress(
             worker_db, task, "running", f"{message}，等待扫码支付", result
@@ -518,7 +517,7 @@ class RechargeMixin:
             order_id=order_resp.orderId,
             result=result,
         )
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
         if payment_status == "paid":
             account.status = "recharge_paid"
             paid_message = f"支付成功: {product_name} x{count} {result['amount_text']}"

web/backend/services/huya_service.py

@@ -3,7 +3,7 @@
 import csv
 import uuid
 from dataclasses import dataclass
-from datetime import datetime, timezone
+from datetime import UTC, datetime
 from urllib.parse import urlparse
 
 from sqlalchemy.orm import Session
@@ -13,7 +13,6 @@ from core.huya.cookie_utils import cookie_value, normalize_huya_cookie
 from ..huya_defaults import HUYA_CONFIG_DEFAULTS, HUYA_CONFIG_FIELDS
 from ..models import HuyaAccount, HuyaConfig, HuyaTask
 
-
 SUPPORTED_TASK_TYPES = {
     "get_bind_qr": "获取绑定二维码",
     "query_points": "一键查询积分",
@@ -204,7 +203,7 @@ def import_huya_password_accounts(
                 account.tag = tag
             if not account.cookie:
                 account.status = "password_imported"
-            account.updated_at = datetime.now(timezone.utc)
+            account.updated_at = datetime.now(UTC)
         created_or_updated += 1
 
     if created_or_updated:
@@ -247,7 +246,7 @@ def _upsert_huya_account(
         if tag:
             account.tag = tag
         account.status = status or "updated"
-        account.updated_at = datetime.now(timezone.utc)
+        account.updated_at = datetime.now(UTC)
     return account
 
 
@@ -276,7 +275,7 @@ def save_huya_login_cookie_to_account(
     if tag:
         account.tag = tag
     account.status = "login_success"
-    account.updated_at = datetime.now(timezone.utc)
+    account.updated_at = datetime.now(UTC)
     db.commit()
     db.refresh(account)
     return account
@@ -358,7 +357,7 @@ def cleanup_orphan_huya_tasks(
     if not tasks:
         return 0
 
-    now = datetime.now(timezone.utc)
+    now = datetime.now(UTC)
     for task in tasks:
         task.status = "stopped"
         task.message = message

web/backend/services/login_service.py

@@ -5,18 +5,21 @@ import os
 import threading
 import time
 import uuid
-from types import SimpleNamespace
 from concurrent.futures import ThreadPoolExecutor, as_completed
-from datetime import datetime, timezone
-from typing import Optional, cast
+from datetime import UTC, datetime
+from types import SimpleNamespace
+from typing import cast
 
-from sqlalchemy.orm import Session
 from loguru import logger
+from sqlalchemy.orm import Session
 
-from core.douyu import DouyuLogin, WgapiLoginAPI, IframeLoginAPI
+from core.douyu import DouyuLogin, IframeLoginAPI, WgapiLoginAPI
 from core.douyu.login import AccountLike
 from core.douyu.proxy_fetcher import ProxyFetcher
-from ..models import Account as AccountModel, LoginTask, ProxyConfig as ProxyConfigModel
+
+from ..models import Account as AccountModel
+from ..models import LoginTask
+from ..models import ProxyConfig as ProxyConfigModel
 from .cookie_check_service import check_douyu_cookie
 
 
@@ -62,8 +65,8 @@ def get_relogin_limits() -> tuple[int, int]:
 
 
 def _snapshot_proxy_config(
-    proxy_config: Optional[ProxyConfigModel],
-) -> Optional[ProxyConfigModel]:
+    proxy_config: ProxyConfigModel | None,
+) -> ProxyConfigModel | None:
     """复制代理配置，避免后台线程访问已关闭会话中的 ORM 对象。"""
     if proxy_config is None:
         return None
@@ -97,13 +100,13 @@ class LoginBatchRunner:
         creator_permissions: list[str],
         max_login_retries: int = 0,
         max_total_time: float = 0,
-        proxy_config: Optional[ProxyConfigModel] = None,
-        log_queue: Optional[asyncio.Queue] = None,
-        loop: Optional[asyncio.AbstractEventLoop] = None,
+        proxy_config: ProxyConfigModel | None = None,
+        log_queue: asyncio.Queue | None = None,
+        loop: asyncio.AbstractEventLoop | None = None,
         concurrency: int = 3,
         api_strategy: str = "wgapi",
         mode: str = "login",
-        relogin_task_ids: Optional[list[int]] = None,
+        relogin_task_ids: list[int] | None = None,
     ):
         self.db = db
         self.account_ids = account_ids
@@ -179,7 +182,7 @@ class LoginBatchRunner:
             if task and task.status in ("relogin_pending", "relogin_running"):
                 task.status = "relogin_failed"
                 task.message = message
-                task.finished_at = datetime.now(timezone.utc)
+                task.finished_at = datetime.now(UTC)
                 worker_db.commit()
         finally:
             worker_db.close()
@@ -199,7 +202,7 @@ class LoginBatchRunner:
                 self.loop,
             )
 
-    def _resolve_static_proxy(self) -> tuple[Optional[dict], str]:
+    def _resolve_static_proxy(self) -> tuple[dict | None, str]:
         """解析静态代理配置。"""
         if not self.proxy_config or not self.proxy_config.enabled:
             return None, ""
@@ -270,7 +273,7 @@ class LoginBatchRunner:
                     else:
                         task.status = "error"
                         task.message = "代理不可用: 未配置代理"
-                    task.finished_at = datetime.now(timezone.utc)
+                    task.finished_at = datetime.now(UTC)
                     worker_db.commit()
                     self._push_log(
                         "error", f"[{current}] {acc_info['username']} 代理不可用"
@@ -384,7 +387,7 @@ class LoginBatchRunner:
                         f"[{current}] {acc_info['username']} {action_name}异常: {e}",
                     )
 
-            task.finished_at = datetime.now(timezone.utc)
+            task.finished_at = datetime.now(UTC)
             worker_db.commit()
 
         finally:
@@ -581,10 +584,10 @@ class BatchRegistry:
     def register(
         self,
         batch_id: str,
-        log_queue: Optional[asyncio.Queue],
-        loop: Optional[asyncio.AbstractEventLoop],
+        log_queue: asyncio.Queue | None,
+        loop: asyncio.AbstractEventLoop | None,
         runner: LoginBatchRunner,
-        owner_id: Optional[int] = None,
+        owner_id: int | None = None,
     ):
         self._batches[batch_id] = {
             "log_queue": log_queue,
@@ -630,7 +633,7 @@ def cleanup_orphan_relogin_tasks(
     if not tasks:
         return 0
 
-    finished_at = datetime.now(timezone.utc)
+    finished_at = datetime.now(UTC)
     for task in tasks:
         task.status = "relogin_failed"
         task.message = message

web/backend/services/proxy_service.py

@@ -1,21 +1,21 @@
 """代理 & 白名单服务层：封装 core/ 代理/白名单逻辑，供路由调用。"""
 
 import asyncio
-import re
 import threading
 import uuid
-from typing import Optional
 
 from sqlalchemy.orm import Session
 
 from core.douyu.proxy import (
+    parse_proxy_response,
     resolve_working_proxy,
     verify_proxy_url,
-    parse_proxy_response,
 )
-from core.douyu.proxy_platforms import create_adapter, get_platform_labels
+from core.douyu.proxy_platforms import create_adapter
 from core.douyu.proxy_platforms.base import _get_local_exit_ip
-from ..models import ProxyConfig as ProxyConfigModel, AuditLog
+
+from ..models import AuditLog
+from ..models import ProxyConfig as ProxyConfigModel
 
 
 def _build_whitelist_params(cfg: ProxyConfigModel) -> dict:
@@ -128,7 +128,7 @@ class ProxyService:
             self._active_tests[test_id] = {"log_queue": log_queue, "loop": loop}
         return test_id, log_queue, loop
 
-    def get_test(self, test_id: str) -> Optional[dict]:
+    def get_test(self, test_id: str) -> dict | None:
         """获取测试任务信息。"""
         with self._active_tests_lock:
             return self._active_tests.get(test_id)

web/backend/services/yyb_service.py

@@ -2,7 +2,7 @@
 
 from __future__ import annotations
 
-from datetime import datetime, timezone
+from datetime import UTC, datetime
 from typing import Any
 
 from sqlalchemy.orm import Session
@@ -12,12 +12,12 @@ from .yyb_worker_client import YybWorkerClient
 
 
 def _utcnow():
-    return datetime.now(timezone.utc)
+    return datetime.now(UTC)
 
 
 def _from_ts(value) -> datetime | None:
     try:
-        return datetime.fromtimestamp(int(value), tz=timezone.utc) if value else None
+        return datetime.fromtimestamp(int(value), tz=UTC) if value else None
     except (TypeError, ValueError, OSError):
         return None
 
@@ -27,8 +27,8 @@ def _as_utc(value: datetime | None) -> datetime | None:
     if value is None:
         return None
     if value.tzinfo is None:
-        return value.replace(tzinfo=timezone.utc)
-    return value.astimezone(timezone.utc)
+        return value.replace(tzinfo=UTC)
+    return value.astimezone(UTC)
 
 
 def cleanup_orphan_yyb_tasks(db: Session, message: str) -> int: