frontend added and socket io

backend/socket.io/roomCache.socket.ts

@@ -1,6 +1,6 @@
 import type { RoomId } from "./types.socket.js";
 
-export const MAX_HISTORY = 20;
+export const MAX_HISTORY = 50;
 export const FLUSH_INTERVAL = 100; // 50ms change higher if needed
 
 export const roomHistory = new Map<RoomId, unknown[]>();