Detect locale with is-china-user and show English copy for non-Chinese visitors.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/page.tsx

@@ -1,6 +1,12 @@
+"use client";
+
 import { Hero } from "~/components/sections/hero";
+import { useLocale } from "~/components/locale-provider";
 
 export default function HomePage() {
+  const { t } = useLocale();
+  const year = new Date().getFullYear();
+
   return (
     <div
       className="flex min-h-dvh flex-col"
@@ -13,7 +19,7 @@ export default function HomePage() {
         className="shrink-0 py-5 text-center text-[11px] text-neutral-400"
         style={{ paddingBottom: "max(1.25rem, var(--safe-bottom))" }}
       >
-        © {new Date().getFullYear()} Nomadro
+        {t.copyright.replace("{year}", String(year))}
       </footer>
     </div>
   );