Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-07-11T16:26:37","request-id":"bfe694a8-ec0a-4316-bf67-65ebc23a581a","client-request-id":"bfe694a8-ec0a-4316-bf67-65ebc23a581a"}}}"