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

src/Model/PriceTimelineItem.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Model;
+
+final readonly class PriceTimelineItem
+{
+    public function __construct(
+        public string $dateFrom,
+        public string $dateTo,
+        public ?string $season,
+        public ?int $includedPax,
+        public float $pricePerNight,
+        public float $priceAdditionalPerson,
+        public ?float $defaultPricePerNight,
+        public ?float $defaultPriceAdditionalPerson,
+        public string $currency,
+        public ?string $type,
+    ) {
+    }
+}