feat(core): add msgpack

src/core/io.js

@@ -15,7 +15,7 @@ const io = new Server(httpServer, {
   path: process.env.SOCKET_PATH || "",
   pingInterval: 10000,
   pingTimeout: 5000,
-  // parser: customParser,
+  parser: customParser,
 });
 
 instrument(io, {