feat: persist travel snapshots and refresh extended availability

src/BusProNet/Model/ExtendedServiceAvailabilityResponse.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\BusProNet\Model;
+
+/**
+ * Response model for extended availability endpoint payloads.
+ */
+class ExtendedServiceAvailabilityResponse
+{
+    /**
+     * @param array<int, ExtendedAvailability> $services
+     * @param array<string>                    $allowedBookingStatus
+     */
+    public function __construct(
+        private readonly array $services,
+        public readonly array $allowedBookingStatus = [],
+        public readonly ?string $travelStatus = null,
+    ) {
+    }
+
+    /**
+     * @return array<int, ExtendedAvailability>
+     */
+    public function getServices(): array
+    {
+        return $this->services;
+    }
+}