refactor: split buspro ApiClient into domain clients

src/BusProNet/Client/ReferenceDataClient.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\BusProNet\Client;
+
+use App\BusProNet\Exception\ApiClientException;
+use App\BusProNet\MessageType;
+use App\BusProNet\Model\Agency;
+use App\BusProNet\Model\BaseData;
+use App\BusProNet\Model\Notification;
+use App\BusProNet\Transport\XmlChannel;
+
+/**
+ * Lists that change rarely and that callers cache for long periods.
+ */
+class ReferenceDataClient
+{
+    public function __construct(
+        private readonly XmlChannel $channel,
+    ) {
+    }
+
+    /**
+     * @return Agency[]|Notification
+     *
+     * @throws ApiClientException
+     */
+    public function getAgencies(): array|Notification
+    {
+        return $this->channel->request(MessageType::Agencies);
+    }
+
+    /**
+     * @throws ApiClientException
+     */
+    public function getBaseData(MessageType $type): Notification|BaseData
+    {
+        return $this->channel->request($type);
+    }
+}