Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-05-25T02:36:36","request-id":"1f314de1-8823-4fab-add3-e5fac0d0061d","client-request-id":"1f314de1-8823-4fab-add3-e5fac0d0061d"}}}"