继续收口首页导航行与暗色弹窗底栏

将首页排行行与分类行切换为 PlatformNavigableListItem
将 NPC 交易详情与地图切场确认底栏收口到 PlatformDarkModalFooter
补充首页与弹窗回归测试并更新 PlatformUiKit 收口计划与共享决策记录

src/components/NpcModals.test.tsx

@@ -311,8 +311,12 @@ test('NPC 弹窗标准 dark footer CTA 复用 PlatformActionButton', async () =>
 
   await user.click(screen.getByRole('button', { name: /月壳/ }));
 
+  const tradeDetailFooter = screen.getByTestId('npc-trade-detail-footer');
   const closeButton = screen.getByRole('button', { name: '关闭' });
 
+  expect(tradeDetailFooter.className).toContain('platform-dark-modal-footer');
+  expect(tradeDetailFooter.className).toContain('px-5');
+  expect(tradeDetailFooter.className).toContain('py-4');
   expect(closeButton.className).toContain('platform-action-button--editor-dark');
   expect(closeButton.className).toContain('rounded-2xl');
 });