Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-25T02:39:20","request-id":"96d61435-3b26-4581-a17c-f5c9e344c2bf","client-request-id":"96d61435-3b26-4581-a17c-f5c9e344c2bf"}}}"