public function publishMigrations()
    {
        $timestamp = date('Y_m_d_His', time());
        $stub = __DIR__ . '/../database/migrations/create_chat_tables.php';
        $target = $this->app->databasePath() . '/migrations/' . $timestamp . '_create_chat_tables.php';

        $this->publishes([$stub => $target], 'chat.migrations');
    }