Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-29T02:22:12","request-id":"c1e3852a-16da-4e71-bf23-1e90f08dc84e","client-request-id":"c1e3852a-16da-4e71-bf23-1e90f08dc84e"}}}"