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/unit/tw_vm_exports.js

@@ -0,0 +1,16 @@
+const {test} = require('tap');
+const VM = require('../../src/virtual-machine');
+
+test('exports exist', t => {
+    const vm = new VM();
+    t.type(vm.exports.Sprite, 'function');
+    t.type(vm.exports.RenderedTarget, 'function');
+    t.end();
+});
+
+test('JSZip', t => {
+    const JSZip = new VM().exports.JSZip;
+    const zip = new JSZip();
+    t.type(zip.file, 'function');
+    t.end();
+});