fix: execute()返回的是内层响应dict,无需再解alipay_ebpp_invoice_institution_detailinfo_query_response

backend/app/plugin/module_payment/expense/institution/controller.py

@@ -397,12 +397,8 @@ async def modify_institution_controller(
             detail_raw = {}
 
             if detail_resp:
-                # detail_resp 可能是 str 或 dict
-                if isinstance(detail_resp, str):
-                    resp_body = _json.loads(detail_resp)
-                else:
-                    resp_body = detail_resp
-                detail_raw = resp_body.get("alipay_ebpp_invoice_institution_detailinfo_query_response", {})
+                # execute() 返回已解析的内层响应 dict，直接使用
+                detail_raw = detail_resp if isinstance(detail_resp, dict) else (_json.loads(detail_resp) if isinstance(detail_resp, str) else {})
 
             # 构建 modify_standard_detail_info
             modify_standard_list = []