Refactor: Remove audio processing and game state management modules

src/server-deno/public/js/state.js

@@ -0,0 +1,15 @@
+export const state = {
+  playerId: (() => {
+    try {
+      return localStorage.getItem('playerId') || null;
+    } catch {
+      return null;
+    }
+  })(),
+  room: null,
+  lastTrack: null,
+  revealed: false,
+  pendingReady: null,
+  isBuffering: false,
+  playlists: [], // Available playlists
+};