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_asset_util.js

@@ -0,0 +1,57 @@
+const {test} = require('tap');
+const JSZip = require('@turbowarp/jszip');
+const makeTestStorage = require('../fixtures/make-test-storage');
+const AssetUtil = require('../../src/util/tw-asset-util');
+const Runtime = require('../../src/engine/runtime');
+
+test('getByMd5ext from zip root', t => {
+    const rt = new Runtime();
+    rt.attachStorage(makeTestStorage());
+    rt.storage.load = () => t.fail('should not call storage.load()');
+
+    const zip = new JSZip();
+    zip.file('00000000000000000000000000000000.svg', new Uint8Array([1, 2, 3]));
+
+    AssetUtil.getByMd5ext(rt, zip, rt.storage.AssetType.SVG, '00000000000000000000000000000000.svg')
+        .then(asset => {
+            t.same(asset.data, new Uint8Array([1, 2, 3]));
+            t.end();
+        });
+});
+
+test('getByMd5ext from zip subdirectory', t => {
+    const rt = new Runtime();
+    rt.attachStorage(makeTestStorage());
+    rt.storage.load = () => t.fail('should not call storage.load()');
+
+    const zip = new JSZip();
+    zip.file('folder/00000000000000000000000000000000.svg', new Uint8Array([25, 26, 27]));
+
+    AssetUtil.getByMd5ext(rt, zip, rt.storage.AssetType.SVG, '00000000000000000000000000000000.svg')
+        .then(asset => {
+            t.same(asset.data, new Uint8Array([25, 26, 27]));
+            t.end();
+        });
+});
+
+test('getByMd5ext from storage with null zip', t => {
+    t.plan(4);
+
+    const rt = new Runtime();
+    rt.attachStorage(makeTestStorage());
+
+    rt.storage.load = (assetType, md5, ext) => {
+        t.equal(assetType, rt.storage.AssetType.SVG);
+        t.equal(md5, '00000000000000000000000000000000');
+        t.equal(ext, 'svg');
+        return Promise.resolve({
+            fromStorage: true
+        });
+    };
+
+    AssetUtil.getByMd5ext(rt, null, rt.storage.AssetType.SVG, '00000000000000000000000000000000.svg')
+        .then(asset => {
+            t.ok(asset.fromStorage);
+            t.end();
+        });
+});