add mode

Signed-off-by: Maurice Preuß (envoyr) <hello@envoyr.com>

src/Id/AnikeenId.php

@@ -51,6 +51,11 @@ class AnikeenId
      */
     private static string $baseUrl = 'https://id.anikeen.com/api/';
 
+    /**
+     * The staging base URL for Anikeen ID API.
+     */
+    private static string $stagingBaseUrl = 'https://staging.id.anikeen.com/api/';
+
     /**
      * The key for the access token.
      */
@@ -105,6 +110,9 @@ class AnikeenId
         if ($redirectUri = config('services.anikeen.redirect')) {
             $this->setRedirectUri($redirectUri);
         }
+        if (config('services.anikeen.mode') === 'staging') {
+            self::setBaseUrl(self::$stagingBaseUrl);
+        }
         if ($baseUrl = config('services.anikeen.base_url')) {
             self::setBaseUrl($baseUrl);
         }