Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-04-16T15:17:13","request-id":"f5615a92-d15c-45b1-ac4c-3646004f3378","client-request-id":"f5615a92-d15c-45b1-ac4c-3646004f3378"}}}"