feat: groups price calculator admin crud, booking/offer flow and api

src/Model/ContingentPricesQuery.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Model;
+
+use Symfony\Component\Validator\Constraints as Assert;
+
+final readonly class ContingentPricesQuery
+{
+    public function __construct(
+        #[Assert\NotBlank]
+        #[Assert\Length(max: 16)]
+        #[Assert\Regex(pattern: '/^[A-Za-z0-9_-]+$/')]
+        public string $hotelCode,
+
+        #[Assert\Range(min: 1000, max: 9999)]
+        public int $year,
+    ) {
+    }
+}