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新增PlatformUtilityInfoModal统一工具信息弹窗白底骨架
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同步更新PlatformUiKit收口计划与共享决策记录

src/components/common/PlatformUtilityInfoModal.test.tsx

@@ -0,0 +1,51 @@
+/* @vitest-environment jsdom */
+
+import { render, screen, within } from '@testing-library/react';
+import { expect, test } from 'vitest';
+
+import { PlatformUtilityInfoModal } from './PlatformUtilityInfoModal';
+
+test('renders platform utility info modal shell with default platform styling', () => {
+  render(
+    <PlatformUtilityInfoModal
+      open
+      title="工具信息"
+      onClose={() => {}}
+      footer={<button type="button">知道了</button>}
+      panelClassName="rounded-[1.5rem]"
+    >
+      <div>这里是正文</div>
+    </PlatformUtilityInfoModal>,
+  );
+
+  const dialog = screen.getByRole('dialog', { name: '工具信息' });
+  expect(dialog.parentElement?.className).toContain('platform-theme--light');
+  expect(dialog.parentElement?.className).toContain('!items-center');
+  expect(dialog.className).toContain('platform-remap-surface');
+  expect(dialog.className).toContain('rounded-[1.5rem]');
+  expect(within(dialog).getByText('这里是正文')).toBeTruthy();
+  expect(within(dialog).getByRole('button', { name: '知道了' })).toBeTruthy();
+});
+
+test('supports custom theme and spacing overrides', () => {
+  render(
+    <PlatformUtilityInfoModal
+      open
+      title="工具信息"
+      onClose={() => {}}
+      platformTheme="dark"
+      bodyClassName="space-y-3"
+      footerClassName="justify-center pt-0"
+      footer={<button type="button">继续</button>}
+    >
+      <div>这里是正文</div>
+    </PlatformUtilityInfoModal>,
+  );
+
+  const dialog = screen.getByRole('dialog', { name: '工具信息' });
+  expect(dialog.parentElement?.className).toContain('platform-theme--dark');
+  expect(dialog.querySelector('.space-y-3')).toBeTruthy();
+  expect(dialog.querySelector('.justify-center')).toBeTruthy();
+  expect(dialog.querySelector('.pt-0')).toBeTruthy();
+  expect(within(dialog).getByRole('button', { name: '继续' })).toBeTruthy();
+});