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_static_fetch.js

@@ -0,0 +1,38 @@
+const {test} = require('tap');
+const staticFetch = require('../../src/util/tw-static-fetch');
+
+test('fetch simple base64', t => {
+    const res = staticFetch('data:text/plain;base64,VGVzdGluZyB0ZXN0aW5nIDEyMw==');
+    res.text().then(text => {
+        t.equal(text, 'Testing testing 123');
+        t.equal(res.status, 200);
+        t.equal(res.ok, true);
+        t.equal(res.headers.get('content-type'), 'text/plain');
+        t.equal(res.headers.get('content-length'), '19');
+        t.end();
+    });
+});
+
+test('fetch base64 with all possible bytes', t => {
+    // eslint-disable-next-line max-len
+    const res = staticFetch('Data:Application/Octet-Stream;BASE64,AAECAwQFBgcICQoLDA0ODxAREhMUFRYXGBkaGxwdHh8gISIjJCUmJygpKissLS4vMDEyMzQ1Njc4OTo7PD0+P0BBQkNERUZHSElKS0xNTk9QUVJTVFVWV1hZWltcXV5fYGFiY2RlZmdoaWprbG1ub3BxcnN0dXZ3eHl6e3x9fn+AgYKDhIWGh4iJiouMjY6PkJGSk5SVlpeYmZqbnJ2en6ChoqOkpaanqKmqq6ytrq+wsbKztLW2t7i5uru8vb6/wMHCw8TFxsfIycrLzM3Oz9DR0tPU1dbX2Nna29zd3t/g4eLj5OXm5+jp6uvs7e7v8PHy8/T19vf4+fr7/P3+/w==');
+    res.arrayBuffer().then(buffer => {
+        t.same(Array.from(new Uint8Array(buffer)), Array(256)
+            .fill()
+            .map((_, index) => index)
+        );
+        t.equal(res.headers.get('content-type'), 'application/octet-stream');
+        t.equal(res.headers.get('content-length'), '256');
+        t.end();
+    });
+});
+
+test('fetch not data:', t => {
+    t.equal(staticFetch('blob:https://turbowarp.org/54346944-16cf-4ce9-aed4-e1df8ad0d779'), null);
+    t.equal(staticFetch('https://example.com/'), null);
+    t.equal(staticFetch('http://example.com/'), null);
+    t.equal(staticFetch('file:///etc/hosts'), null);
+    t.equal(staticFetch('oegirjdf'), null);
+    t.equal(staticFetch(''), null);
+    t.end();
+});