feat: add socket.data.uid on connect

src/socket.io/index.js

@@ -76,6 +76,7 @@ Sockets.init = async function (server) {
 
 function onConnection(socket) {
 	socket.uid = socket.request.uid;
+	socket.data.uid = socket.uid; // socket.data is shared between nodes via fetchSockets
 	socket.ip = (
 		socket.request.headers['x-forwarded-for'] ||
 		socket.request.connection.remoteAddress || ''