Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-04-03T04:59:46","request-id":"0c13feb7-541c-49d7-9dcb-8a01963e7175","client-request-id":"0c13feb7-541c-49d7-9dcb-8a01963e7175"}}}"