Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-22T19:24:14","request-id":"f0a09fa3-227a-4bdd-bc00-dd6d0dc1bab6","client-request-id":"f0a09fa3-227a-4bdd-bc00-dd6d0dc1bab6"}}}"