feat: 完善出海商机管道快速录入、RTL服务端首屏渲染与AI顾问留资动效闭环

backend/test/modules/card/portal-crawler.test.ts

@@ -204,6 +204,22 @@ describe('Point 29-B: 社交爬虫探测与微官网短链服务端渲染集成
       expect(html).toContain('Hack & Co "Global"');
     });
 
+    it('当名片推荐语言为阿拉伯语等 RTL 语言时，服务端首屏 HTML 必须注入 dir="rtl" 属性', () => {
+      const arabicCard: CardPortalDetail = {
+        ...mockAlexCardDetail,
+        suggestedLocale: 'ar',
+      };
+      const html = cardSeoService.renderCardHtml(arabicCard);
+      expect(html).toContain('<html lang="ar" dir="rtl">');
+
+      const uaeCard: CardPortalDetail = {
+        ...mockAlexCardDetail,
+        suggestedLocale: 'ar-AE',
+      };
+      const uaeHtml = cardSeoService.renderCardHtml(uaeCard);
+      expect(uaeHtml).toContain('<html lang="ar-AE" dir="rtl">');
+    });
+
     it('生成 404 兜底 HTML 时应提示名片已下线或不存在', () => {
       const notFoundHtml = cardSeoService.renderNotFoundHtml('名片不存在或已下线');