Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-19T10:38:40","request-id":"38c51a2f-1c96-4643-8ac4-7d99520aa0c8","client-request-id":"38c51a2f-1c96-4643-8ac4-7d99520aa0c8"}}}"