Complete Cocos Creator port with level bundles, themes, and tooling.

Adds level prefabs, theme assets, audio, extensions, and deployment scripts for the Unity WebGL migration.

Co-authored-by: Cursor <cursoragent@cursor.com>

extensions/theme-controller/dist/main.js

@@ -0,0 +1,20 @@
+'use strict';
+
+exports.methods = {
+    openPanel() {
+        try {
+            Editor.Panel.open('theme-controller');
+            console.log('[theme-controller] Panel.open');
+        } catch (e) {
+            console.error('[theme-controller] open failed:', e);
+        }
+    },
+};
+
+exports.load = function () {
+    console.log('[theme-controller] extension loaded');
+};
+
+exports.unload = function () {
+    console.log('[theme-controller] extension unloaded');
+};