Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-07-12T17:17:31","request-id":"77f54279-4684-4300-b6eb-d66ad9894307","client-request-id":"77f54279-4684-4300-b6eb-d66ad9894307"}}}"