Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-08-09T04:10:24","request-id":"d22c9b82-1a89-4c4b-9833-19a737191b19","client-request-id":"d22c9b82-1a89-4c4b-9833-19a737191b19"}}}"