Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-11-01T00:04:00","request-id":"0e60fe0b-80e0-4a5d-98aa-d305dcda5f0d","client-request-id":"0e60fe0b-80e0-4a5d-98aa-d305dcda5f0d"}}}"