继续收口平台空态与动作按钮

作品架异步状态切换复用 PlatformAsyncStatePanel
复制反馈动作外观改为组合 PlatformActionButton
结果页与调试面板空态继续收口到 PlatformEmptyState
暗色私聊与工坊按钮改为复用 PlatformActionButton
更新 PlatformUiKit 收口文档与团队决策记录

src/components/common/CopyFeedbackButton.test.tsx

@@ -105,15 +105,19 @@ test('can opt into platform action button chrome', () => {
       actionSurface="platform"
       actionShape="pill"
       actionFullWidth
+      aria-label="复制错误详情"
+      title="复制错误详情"
     />,
   );
 
-  const button = screen.getByRole('button', { name: '复制报错' });
+  const button = screen.getByRole('button', { name: '复制错误详情' });
 
   expect(button.className).toContain('platform-button--primary');
   expect(button.className).toContain('w-full');
   expect(button.className).toContain('rounded-full');
   expect(button.className).toContain('disabled:cursor-not-allowed');
+  expect(button.getAttribute('title')).toBe('复制错误详情');
+  expect(button.textContent).toContain('复制报错');
 });
 
 test('can opt into shared pill action chrome', () => {