message: Restore for `scaffold()`
diff: @@ -159,7 +159,9 @@ export class ScaffolderClient implements ScaffolderApi {
  });
  if (response.status !== 201) {
  - throw ResponseError.fromResponse(response);
  + const status = `${response.status} ${response.statusText}`;
  + const body = await response.text();
  + throw new Error(`Backend request failed, ${status} ${body.trim()}`);
  }
  const { id } = (await response.json()) as { id: string };
  