Итерация 1: каркас Slim 4 приложения

- Slim 4 + php-di контейнер с маршрутизацией
- Docker Compose: app (PHP 8.3-FPM) + web (nginx) + db (MariaDB)
- Phinx миграция: таблица users (uuid, username, password_hash)
- Auth: login/logout с сессиями
- Setup: создание первого пользователя
- Dashboard с layout (Bootstrap 5.3)
- CLI: bin/console, bin/run-scan-worker.php
- Smoke test: scripts/check.sh
- README.md, PLAN.md

app/Services/AuthService.php

@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Domovoy\Services;
+
+use Domovoy\Models\User;
+use Domovoy\Repositories\UserRepository;
+
+class AuthService
+{
+    private UserRepository $userRepository;
+
+    public function __construct(UserRepository $userRepository)
+    {
+        $this->userRepository = $userRepository;
+    }
+
+    public function authenticate(string $username, string $password): ?User
+    {
+        $user = $this->userRepository->findByUsername($username);
+        if ($user === null) {
+            return null;
+        }
+
+        if (!password_verify($password, $user->passwordHash)) {
+            return null;
+        }
+
+        return $user;
+    }
+
+    public function createUser(string $username, string $password): User
+    {
+        if ($this->userRepository->findByUsername($username) !== null) {
+            throw new \RuntimeException("User '{$username}' already exists");
+        }
+
+        $user = new User();
+        $user->username = $username;
+        $user->passwordHash = password_hash($password, PASSWORD_ARGON2ID);
+        $user->createdAt = new \DateTimeImmutable();
+        $user->updatedAt = new \DateTimeImmutable();
+
+        $this->userRepository->save($user);
+        return $user;
+    }
+
+    public function getUserCount(): int
+    {
+        return $this->userRepository->count();
+    }
+}