feat: 메시지 띄우기(wip)

hwe/sammo/API/Message/GetRecentMessage.php

@@ -29,7 +29,7 @@ class GetRecentMessage extends \sammo\BaseAPI
 
   public function getRequiredSessionMode(): int
   {
-    return static::REQ_GAME_LOGIN;
+    return static::REQ_GAME_LOGIN | static::REQ_READ_ONLY;
   }
 
   private function delayFrequentCall(Session $session): void