增加备案号

src/TravelSite.tsx

@@ -7709,6 +7709,10 @@ function SiteFooter() {
           <a href="/service-agreement.html">{translateUi('服务协议', language)}</a>
           <span aria-hidden="true">·</span>
           <a href="/privacy-policy.html">{translateUi('隐私政策', language)}</a>
+          <span aria-hidden="true">·</span>
+          <a href="https://beian.miit.gov.cn/" target="_blank" rel="noopener noreferrer">
+            黔ICP备2025054767号-7
+          </a>
         </nav>
       </div>
     </footer>