Add Laravel broadcasting setup

Register channel routes and add the default broadcasting configuration generated for Laravel broadcasting support.

bootstrap/app.php

@@ -9,6 +9,7 @@ return Application::configure(basePath: dirname(__DIR__))
         web: __DIR__.'/../routes/web.php',
         api: __DIR__.'/../routes/api.php',
         commands: __DIR__.'/../routes/console.php',
+        channels: __DIR__.'/../routes/channels.php',
         health: '/up',
     )
     ->withMiddleware(function (Middleware $middleware): void {