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-gui/test/unit/util/code-payload.test.js

@@ -0,0 +1,19 @@
+jest.mock('../../../src/lib/backpack/block-to-image', () => () => Promise.resolve('block-image'));
+jest.mock('../../../src/lib/backpack/thumbnail', () => () => Promise.resolve('thumbnail'));
+
+import codePayload from '../../../src/lib/backpack/code-payload';
+import {Base64} from 'js-base64';
+
+describe('codePayload', () => {
+    test('base64 encodes the blocks as json', () => {
+        const blocks = '☁︎❤️🐻';
+        const payload = codePayload({
+            blockObjects: blocks
+        });
+        return payload.then(p => {
+            expect(
+                JSON.parse(Base64.decode(p.body))
+            ).toEqual(blocks);
+        });
+    });
+});