fix: APIHelper DummySession 초기화 문제

src/sammo/APIHelper.php

@@ -73,7 +73,7 @@ class APIHelper
 
             $sessionMode = $obj->getRequiredSessionMode();
             if ($sessionMode === BaseAPI::NO_SESSION) {
-                $session = new DummySession();
+                $session = DummySession::getInstance();
             } else {
                 if ($sessionMode & BaseAPI::REQ_GAME_LOGIN) {
                     $session = Session::requireGameLogin(null);

src/sammo/Session.php

@@ -109,7 +109,7 @@ class Session
         //session_cache_limiter('nocache, must_revalidate');
 
         // 세션 변수의 등록
-        if (session_id() == "") {
+        if (session_status() === PHP_SESSION_NONE) {
             session_start();
             $this->sessionID = session_id();
         }