Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-29T17:07:31","request-id":"f2ba1f74-f354-4cca-b1fb-9fe030a92bce","client-request-id":"f2ba1f74-f354-4cca-b1fb-9fe030a92bce"}}}"