Initial import: open-design source for helix-mind.ai distribution

This repository contains the open-design daemon CLI source code, built
and packaged at https://helix-mind.ai/cli/open-design/latest.tgz for use
by the HelixMind /design slash command.

Licenses: Apache-2.0 (root) + MIT (skills/*)

apps/web/tests/utils/chatTime.test.ts

@@ -0,0 +1,31 @@
+import { describe, expect, it } from 'vitest';
+
+import type { ChatMessage } from '../../src/types';
+import { messageTime } from '../../src/utils/chatTime';
+
+describe('messageTime', () => {
+  it('uses assistant startedAt before persisted createdAt', () => {
+    const message: ChatMessage = {
+      id: 'assistant-1',
+      role: 'assistant',
+      content: 'Done',
+      startedAt: 100,
+      createdAt: 200,
+      endedAt: 300,
+    };
+
+    expect(messageTime(message)).toBe(100);
+  });
+
+  it('keeps user createdAt as the primary timestamp', () => {
+    const message: ChatMessage = {
+      id: 'user-1',
+      role: 'user',
+      content: 'Build this',
+      startedAt: 100,
+      createdAt: 200,
+    };
+
+    expect(messageTime(message)).toBe(200);
+  });
+});