Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-06T00:44:35","request-id":"b93aaff0-6b65-4c08-a23a-4ee1a33e1848","client-request-id":"b93aaff0-6b65-4c08-a23a-4ee1a33e1848"}}}"