fix: auto-fix code issues (cron)

- 修复重复导入/字段
- 修复异常处理
- 修复PEP8格式问题
- 添加类型注解
- 清理未使用的导入
- 统一字符串格式化为f-string
- 修复行长度超过120字符的问题

backend/tingwu_client.py

@@ -78,9 +78,9 @@ class TingwuClient:
         """获取任务结果"""
         try:
             # 导入移到文件顶部会导致循环导入，保持在这里
+            from alibabacloud_openapi_util import models as open_api_models
             from alibabacloud_tingwu20230930 import models as tingwu_models
             from alibabacloud_tingwu20230930.client import Client as TingwuSDKClient
-            from alibabacloud_openapi_util import models as open_api_models
 
             config = open_api_models.Config(
                 access_key_id=self.access_key, access_key_secret=self.secret_key