feat(warehousing): ppoo monitoring added

this will monitor ppoo every 45 seconds as long as someone is on the page.

closes #13

backend/socket.io/roomCache.socket.ts

@@ -1,4 +1,4 @@
-import type { RoomId } from "./types.socket.js";
+import type { RoomId } from "./roomDefinitions.socket.js";
 
 export const MAX_HISTORY = 50;
 export const FLUSH_INTERVAL = 100; // 50ms change higher if needed