Implermented login

src/php/Login/LoginProvider.php

@@ -0,0 +1,12 @@
+<?php
+declare(strict_types=1);
+
+namespace GamesShop\Login;
+
+use GamesShop\Entities\Account\User;
+use Psr\Http\Message\ServerRequestInterface;
+
+interface LoginProvider
+{
+    public function getUser(ServerRequestInterface $request): User;
+}