fix(accounts): 完善手机号必绑与账号注销等登录异常分型识别

- 补充必须绑定手机号与账号注销/封禁/冻结等错误文案的识别规则
- 增加数据修正迁移 20261008_0052，回写历史账号和登录任务的失败分型
- 增加列表查询与导出时根据错误文案自动兜底细化 failure_kind 的逻辑
- 增加并完善相关分型单元测试

web/backend/services/login_failure.py

@@ -50,13 +50,26 @@ def classify_failure(message: str | None) -> str:
         return "must_bind_mobile"
     if "上限" in text or "配额" in text:
         return "email_quota"
-    if "极验" in text or "验证" in text and "滑块" in text:
+    if "极验" in text or ("验证" in text and "滑块" in text):
         return "captcha"
-    if "验证码" in text:
+    if "验证码" in text or "取码" in text:
         return "email_code"
     if "中断" in text or "已停止" in text or "任务已停止" in text:
         return "interrupted"
-    if "密码" in text or "账号不存在" in text or "缺少密码或邮箱" in text:
+    if any(
+        k in text
+        for k in (
+            "密码",
+            "账号不存在",
+            "缺少密码或邮箱",
+            "注销",
+            "已注销",
+            "封禁",
+            "冻结",
+            "限制登录",
+            "禁止登录",
+        )
+    ):
         return "credential"
     # 请求失败/超时/连接异常，以及未知文案：都按可重试处理。
     # 宁可多给一次机会（有每日上限兜底），也不要把可能只是抖动的账号推给人工。