Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-12T02:37:30","request-id":"840515b3-9966-4aed-a322-a5634e0080f5","client-request-id":"840515b3-9966-4aed-a322-a5634e0080f5"}}}"