ClientController: clash: add subscription-userinfo header

app/Http/Controllers/Client/ClientController.php

@@ -245,6 +245,7 @@ class ClientController extends Controller
 
     private function clash($user, $servers = [])
     {
+        header("subscription-userinfo: upload={$user['u']}; download={$user['d']}; total={$user['transfer_enable']}; expire={$user['expired_at']}");
         $defaultConfig = base_path() . '/resources/rules/default.clash.yaml';
         $customConfig = base_path() . '/resources/rules/custom.clash.yaml';
         if (\File::exists($customConfig)) {