fix(ClientMarginConfig): 移除调试用的线程休眠代码

- 删除了 GetApplicableMarginRate 方法中的 Thread.Sleep(100000) 调试代码
- 保留了原有的保证金率获取逻辑
- 恢复了正常的接口响应流程

YLErpWeb/Controllers/ClientMarginConfigController.cs

@@ -201,9 +201,8 @@ namespace YLErp.Web.Controllers
         [HttpPost]
         public JsonResult GetApplicableMarginRate([FromBody]GetClientMarginDetailReq req)
         {
-            var detail= YLErp.Modules.UnderlyingModule.UnderlyingHelper.GetApplicableMarginRate(req.clientId, req.underlyingCode, req.valueDate);
-            Thread.Sleep(1000000000);
-            return JsonSuccess("",detail);
+            var detail = YLErp.Modules.UnderlyingModule.UnderlyingHelper.GetApplicableMarginRate(req.clientId, req.underlyingCode, req.valueDate);
+            return JsonSuccess("", detail);
         }
 
         private void GetExtendInfo(IEnumerable<ClientMarginConfigDto> marginConfigs)