Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-07-09T15:41:11","request-id":"09b83cf1-c755-4170-a7a4-add183a903ac","client-request-id":"09b83cf1-c755-4170-a7a4-add183a903ac"}}}"