Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-17T13:00:16","request-id":"10b1bdcf-6c82-4220-82d1-dc7f7e01468f","client-request-id":"10b1bdcf-6c82-4220-82d1-dc7f7e01468f"}}}"