feat: 极验验证默认无限重试，由登录整体超时兜底

- max_proxy_retries 默认值从10改为0（无限重试）
- _solve_geetest 增加 deadline 参数，超时则主动退出
- login() 计算 deadline 并传递给极验验证
- 前端/Schema/Service 默认值同步更新

core/douyu/login.py

@@ -72,7 +72,7 @@ class DouyuLogin:
         proxy_api_url: Optional[str] = None,
         timeout: tuple[float, float] = REQUEST_TIMEOUT,
         max_geetest_retries: int = 5,
-        max_proxy_retries: int = 10,
+        max_proxy_retries: int = 0,
         max_login_retries: int = 3,
         max_total_time: float = 300,
         whitelist_uid: str = "",
@@ -328,6 +328,7 @@ class DouyuLogin:
         """
         logger.info(f"开始登录账号: {self.account.username}")
         start_time = time.monotonic()
+        deadline = start_time + self.max_total_time
 
         for attempt in range(1, self.max_login_retries + 1):
             elapsed = time.monotonic() - start_time
@@ -347,7 +348,7 @@ class DouyuLogin:
 
                 # 2️⃣ 极验 fullpage 验证
                 logger.info("步骤2: 极验 fullpage 验证...")
-                validate, seccode = self._solve_geetest(gt, challenge)
+                validate, seccode = self._solve_geetest(gt, challenge, deadline=deadline)
 
                 # 3️⃣ 第二次登录（带极验）
                 logger.info("步骤3: 第二次登录（带极验验证）...")
@@ -454,7 +455,7 @@ class DouyuLogin:
 
         return gt, challenge, code_token, self.session.cookies.get_dict()
 
-    def _solve_geetest(self, gt: str, challenge: str) -> Tuple[str, str]:
+    def _solve_geetest(self, gt: str, challenge: str, deadline: float = 0) -> Tuple[str, str]:
         """
         解决极验 fullpage 验证（带重试机制）
 
@@ -465,6 +466,8 @@ class DouyuLogin:
         Args:
             gt: 极验gt参数
             challenge: 极验challenge参数（第一次登录返回的）
+            deadline: 登录整体超时截止时间（monotonic），0=不限
+            challenge: 极验challenge参数（第一次登录返回的）
 
         Returns:
             (validate, seccode)
@@ -479,6 +482,10 @@ class DouyuLogin:
         _SOFT_FAIL_THRESHOLD = 2  # 同一代理连续临时失败2次才换
 
         for attempt in range(max_attempts):
+            # 超时兜底：极验验证不应超过登录整体时间上限
+            if deadline and time.monotonic() > deadline:
+                raise ValueError(f"极验验证超时（登录整体时间耗尽）")
+
             try:
                 if self.max_proxy_retries > 0:
                     logger.info(f"极验验证尝试 {attempt + 1}/{max_attempts}")

web/backend/schemas.py

@@ -125,7 +125,7 @@ class AccountOut(BaseModel):
 class LoginBatchRequest(BaseModel):
     account_ids: list[int]
     max_geetest_retries: int = 5
-    max_proxy_retries: int = 10  # 代理切换次数，0=无限切换直到成功
+    max_proxy_retries: int = 0  # 代理切换次数，0=无限切换直到成功
     max_login_retries: int = 3  # 登录整体重试次数（换代理从头重跑）
     max_total_time: float = 300  # 单账号登录总时长上限（秒），超时则放弃
     concurrency: int = 3  # 并发数，1-10

web/backend/services/login_service.py

@@ -29,7 +29,7 @@ class LoginBatchRunner:
         created_by: int,
         creator_permissions: list[str],
         max_geetest_retries: int = 5,
-        max_proxy_retries: int = 10,
+        max_proxy_retries: int = 0,
         max_login_retries: int = 3,
         max_total_time: float = 300,
         proxy_config: Optional[ProxyConfigModel] = None,

web/frontend/src/pages/LoginTasksPage.tsx

@@ -44,7 +44,7 @@ export default function LoginTasksPage() {
   });
   const [maxProxyRetries, setMaxProxyRetries] = useState(() => {
     const v = localStorage.getItem('login_max_proxy_retries');
-    return v ? Math.max(0, Number(v) || 10) : 10;
+    return v ? Math.max(0, Number(v) || 0) : 0;
   });
 
   // 值变化时自动持久化