Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-22T06:10:31","request-id":"1bc2f982-76ea-4029-9540-584acb716c58","client-request-id":"1bc2f982-76ea-4029-9540-584acb716c58"}}}"