fix: 修复app.py中的缩进错误和logger配置问题

src/web/app.py

@@ -10,6 +10,9 @@ import os
 import json
 import logging
 import pandas as pd
+
+# 配置日志
+logger = logging.getLogger(__name__)
 from datetime import datetime, timedelta
 from openpyxl import Workbook
 from openpyxl.styles import Font