Add /guest/departments endpoint for paginated department retrieval

- Introduced `GET /guest/departments` in `guestRoute` to fetch departments with pagination.
- Limited response to include only `id` and `name` fields for streamlined output.

services/nginx/app/routes/guestRoute.php

@@ -5,6 +5,7 @@ namespace routes;
 use classes\authentication;
 use classes\recaptcha;
 use classes\virkdata;
+use objects\departments_o;
 use objects\logs_o;
 use objects\tokens_o;
 use objects\users_o;
@@ -47,5 +48,17 @@ class guestRoute
         }, [
             'cvr_search' => 'Search CVR numbers'
         ]);
+
+        $this->get('/guest/departments', function () {
+            global $response;
+            $departments = (new departments_o());
+            $response->success($departments->listObjectsWithPaginationIfSet(function ($department_array) {
+                // Only return id and name
+                return [
+                    'id' => $department_array['id'],
+                    'name' => $department_array['name']
+                ];
+            }), 200);
+        });
     }
 }