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/reducers/workspace-metrics-reducer.test.js

@@ -0,0 +1,25 @@
+/* eslint-env jest */
+import workspaceMetricsReducer, {updateMetrics} from '../../../src/reducers/workspace-metrics';
+
+test('initialState', () => {
+    let defaultState;
+    /* workspaceMetricsReducer(state, action) */
+    expect(workspaceMetricsReducer(defaultState, {type: 'anything'})).toBeDefined();
+    expect(workspaceMetricsReducer(defaultState, {type: 'anything'})).toEqual({targets: {}});
+});
+
+test('updateMetrics action creator', () => {
+    let defaultState;
+    const action = updateMetrics({
+        targetID: 'abcde',
+        scrollX: 225,
+        scrollY: 315,
+        scale: 1.25
+    });
+    const resultState = workspaceMetricsReducer(defaultState, action);
+    expect(Object.keys(resultState.targets).length).toBe(1);
+    expect(resultState.targets.abcde).toBeDefined();
+    expect(resultState.targets.abcde.scrollX).toBe(225);
+    expect(resultState.targets.abcde.scrollY).toBe(315);
+    expect(resultState.targets.abcde.scale).toBe(1.25);
+});