Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-05-30T06:02:40","request-id":"a52275f5-8106-4243-bcb3-bfebfa9fd166","client-request-id":"a52275f5-8106-4243-bcb3-bfebfa9fd166"}}}"