Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-08T10:08:14","request-id":"f16d1e91-078f-4256-a162-6c9fc3ec3ab6","client-request-id":"f16d1e91-078f-4256-a162-6c9fc3ec3ab6"}}}"