chore: import upstream snapshot with attribution

packages/utils/socket.ts

@@ -0,0 +1,9 @@
+import { Socket } from 'socket.io';
+
+export function getSocketIp(socket: Socket) {
+    return (
+        (socket.handshake.headers['x-real-ip'] as string) ||
+        socket.request.connection.remoteAddress ||
+        ''
+    );
+}