Initial commit of 001code-html Scratch frontend project.

Includes scratch-gui, scratch-vm, scratch-blocks, scratch-render, scratch-l10n, and deployment config.

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

scratch-vm/test/fixtures/dispatch-test-worker.js

@@ -0,0 +1,11 @@
+const dispatch = require('../../src/dispatch/worker-dispatch');
+const DispatchTestService = require('./dispatch-test-service');
+const log = require('../../src/util/log');
+
+dispatch.setService('RemoteDispatchTest', new DispatchTestService());
+
+dispatch.waitForConnection.then(() => {
+    dispatch.call('test', 'onWorkerReady').catch(e => {
+        log(`Test worker failed to call onWorkerReady: ${JSON.stringify(e)}`);
+    });
+});