feat: add unified modal shell

src/components/common/UnifiedModal.test.tsx

@@ -0,0 +1,58 @@
+/* @vitest-environment jsdom */
+
+import { fireEvent, render, screen } from '@testing-library/react';
+import { expect, test, vi } from 'vitest';
+
+import { UnifiedModal } from './UnifiedModal';
+
+test('renders an accessible platform modal', () => {
+  render(
+    <UnifiedModal open title="统一弹窗" onClose={() => {}} portal={false}>
+      <div>窗口内容</div>
+    </UnifiedModal>,
+  );
+
+  expect(screen.getByRole('dialog', { name: '统一弹窗' })).toBeTruthy();
+  expect(screen.getByText('窗口内容')).toBeTruthy();
+});
+
+test('closes through backdrop and escape', () => {
+  const onClose = vi.fn();
+  const { rerender } = render(
+    <UnifiedModal open title="统一弹窗" onClose={onClose} portal={false}>
+      <div>窗口内容</div>
+    </UnifiedModal>,
+  );
+
+  fireEvent.click(screen.getByRole('dialog').parentElement as HTMLElement);
+  expect(onClose).toHaveBeenCalledTimes(1);
+
+  rerender(
+    <UnifiedModal open title="统一弹窗" onClose={onClose} portal={false}>
+      <div>窗口内容</div>
+    </UnifiedModal>,
+  );
+  fireEvent.keyDown(window, { key: 'Escape' });
+  expect(onClose).toHaveBeenCalledTimes(2);
+});
+
+test('respects closeDisabled for every default close path', () => {
+  const onClose = vi.fn();
+  render(
+    <UnifiedModal
+      open
+      title="生成中"
+      onClose={onClose}
+      closeDisabled
+      portal={false}
+    >
+      <div>窗口内容</div>
+    </UnifiedModal>,
+  );
+
+  fireEvent.click(screen.getByRole('dialog').parentElement as HTMLElement);
+  fireEvent.keyDown(window, { key: 'Escape' });
+  fireEvent.click(screen.getByRole('button', { name: '关闭' }));
+
+  expect(onClose).not.toHaveBeenCalled();
+});