fix: convert ES modules to classic scripts for file:// compatibility

Browsers block ES module imports over the file:// protocol due to CORS.
Users opening the overlay by double-clicking the HTML file saw all JS
fail to load. Replace import/export with a window.OBS global namespace
and classic <script> tags so the overlay works without a local server.

Made-with: Cursor

js/controls.js

@@ -2,8 +2,6 @@
  * Debug dashboard, manual overrides, and bindings for the controls panel.
  */
 
-import { OVERRIDE_MODES } from './state-manager.js';
-
 const STATE_COLORS = Object.freeze({
   idle: '#888',
   lobby: '#4CAF50',
@@ -20,7 +18,7 @@ const STORAGE_API_KEY = 'jackbox-api-key';
  * @param {import('./websocket-client.js').WebSocketClient} wsClient
  * @param {{ roomCode?: unknown, audio?: unknown, playerList?: unknown }} components
  */
-export function initControls(manager, wsClient, components) {
+function initControls(manager, wsClient, components) {
   const stateEl = document.getElementById('manager-state');
   const roomCodeEl = document.getElementById('manager-room-code');
   const sessionIdEl = document.getElementById('manager-session-id');
@@ -34,7 +32,7 @@ export function initControls(manager, wsClient, components) {
     const select = document.getElementById(`override-${name}`);
     if (!select) continue;
     if (select.options.length === 0) {
-      for (const mode of Object.values(OVERRIDE_MODES)) {
+      for (const mode of Object.values(window.OBS.OVERRIDE_MODES)) {
         const opt = document.createElement('option');
         opt.value = mode;
         opt.textContent = mode.replace(/_/g, ' ');
@@ -335,7 +333,7 @@ export function initControls(manager, wsClient, components) {
 /**
  * @returns {(state: string, message?: string) => void}
  */
-export function initConnectionStatusHandler() {
+function initConnectionStatusHandler() {
   const wsStatusDot = document.getElementById('ws-status-dot');
   const wsStatusText = document.getElementById('ws-status-text');
   const wsConnectBtn = document.getElementById('ws-connect-btn');
@@ -360,3 +358,7 @@ export function initConnectionStatusHandler() {
     }
   };
 }
+
+window.OBS = window.OBS || {};
+window.OBS.initControls = initControls;
+window.OBS.initConnectionStatusHandler = initConnectionStatusHandler;