Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-02T14:08:12","request-id":"9397d169-89f1-42ab-a3a7-002e314fe053","client-request-id":"9397d169-89f1-42ab-a3a7-002e314fe053"}}}"