fix: bind server to 0.0.0.0 for external access (#115)

src/main.rs

@@ -335,7 +335,7 @@ async fn main() -> anyhow::Result<()> {
     let hardhat = HardhatNamespaceImpl::new(node.get_inner());
 
     let threads = build_json_http(
-        SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), opt.port),
+        SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), opt.port),
         node,
         net,
         config_api,