feat(director): add bounded scene data packs and placement

src/standalone/tools.js

@@ -1,8 +1,16 @@
+import { createAssetDirectorySource } from '../director/packs/source.js';
 import { createApplicationTools } from '../app/tools.js';
 import { startStandaloneChrome } from './startupChrome.js';
 export function createStandaloneTools(options) {
   return createApplicationTools({
     startChrome: startStandaloneChrome,
+    sceneDataPacks: {
+      sources: {
+        assets: createAssetDirectorySource({
+          baseUrl: new URL('/scene-assets/', window.location.href).href,
+        }),
+      },
+    },
     ...options,
   });
 }