Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-02T22:56:39","request-id":"92df14ea-37d9-464f-90e7-90ee7e2ccda6","client-request-id":"92df14ea-37d9-464f-90e7-90ee7e2ccda6"}}}"