Function handle_list 

pub async fn handle_list(
    socket: impl AsRef<Path>,
    container_id: Option<String>,
    json: bool,
    use_color: bool,
) -> Result<()>

Displays a combined listing of static iptables NAT rules and daemon-managed state.

Reads live iptables rules via iptables-save (filtering to natmap-commented rules only) and queries the daemon at GET /mappings for managed DNAT, SNAT, hairpin, and Docker mappings.