修复求和数据页面显示的问题

lib/api/sum_data_api.py

@@ -40,7 +40,8 @@ def collect_sum_data():
 def list_sum_data():
     """查询求和数据列表"""
     try:
-        page = int(request.args.get('page', 1))
+        page_param = request.args.get('page')
+        page = int(page_param) if page_param else None
         page_size = int(request.args.get('page_size', 20))
         start_date = request.args.get('start_date')
         end_date = request.args.get('end_date')
@@ -48,7 +49,7 @@ def list_sum_data():
         config_name = request.args.get('config_name')
         sum_field_key = request.args.get('sum_field_key')
         data_source = request.args.get('data_source')
-        log_info(f'[求和数据API] 查询求和数据列表，第{page}页', 'api')
+        log_info(f'[求和数据API] 查询求和数据列表，page={page}, page_size={page_size}', 'api')
         
         result = get_sum_data_list(
             page=page,