API - Search Prices:

- Added endpoint to get prices for all RoomCategories.
- Improvements to Prices API.

src/Response/SearchPricesResponsePriceItem.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Response;
+
+use OpenApi\Attributes as OA;
+
+class SearchPricesResponsePriceItem
+{
+    #[OA\Property(description: 'Guest number for price')]
+    public int $guestNumber;
+
+    #[OA\Property(description: 'Total price')]
+    public int $price;
+}