feat:飞书增加网关策略

@@ -22,6 +22,8 @@ class Feishu{
     const url_follow = 'https://open.feishu.cn/open-apis/bot/v2/hook/f30bbb72-091c-499d-a577-43c45dceb158';
     //A01-交易策略研发沟通
     const url_strategy = 'https://open.feishu.cn/open-apis/bot/v2/hook/53444f37-cfec-420c-a4e6-2f415b908dee';
+    //网格策略运营群
+    const url_grid = 'https://open.feishu.cn/open-apis/bot/v2/hook/19471aa1-f926-46d7-a1d5-a367d1449092';
     static public function notice($content,$channel_url,$users=[])
     {
         $userXml = '';

@@ -31,7 +31,7 @@ class SimpleServerCoroutine
             $simpleRequest = new SimpleRequest($requestInfo);
             $res = call_user_func($callback, $simpleRequest);
             if(empty($res)){
-                $response->end('');
+                $response->end(json_encode(['code'=>-1,'msg'=>'nothing return']));
             }else{
                 $response->end($res);
             }