Restore SSG serve logic (#4111)

* Build ssg routes when both the client and server builds are finished

* Fix default server fn encoding

* fix tokio console

* fix ssg

* add prerendering message

* render under the same environment variables as normal

* fix check

* use should_bundle_to_asset

* enable ssg playwright test

* fix clippy

packages/server-macro/src/lib.rs

@@ -212,6 +212,9 @@ pub fn server(args: proc_macro::TokenStream, body: TokenStream) -> TokenStream {
     };
 
     parsed
+        .default_protocol(Some(
+            parse_quote!(server_fn::Http<server_fn::codec::Json, server_fn::codec::Json>),
+        ))
         .default_input_encoding(Some(parse_quote!(server_fn::codec::Json)))
         .default_output_encoding(Some(parse_quote!(server_fn::codec::Json)))
         .default_server_fn_path(Some(parse_quote!(server_fn)))