[TOOLS][PHPStan] Add mechanism for initializing the whole application

config/phpstan-bootstrap.php

@@ -3,8 +3,7 @@
 require_once 'bootstrap.php';
 
 use App\Kernel;
-use Symfony\Component\Dotenv\Dotenv;
 
 $kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
 $kernel->boot();
-return $kernel->getContainer()->get('doctrine')->getManager();
+return $kernel;