feat: render locale-aware portfolio routes

src/app/(en)/layout.tsx

@@ -0,0 +1,12 @@
+import type { Metadata } from 'next';
+import { SiteRoot } from '@/app/SiteRoot';
+import { messagesByLocale } from '@/i18n/content';
+import '@/styles/globals.css';
+
+export const metadata: Metadata = messagesByLocale.en.metadata;
+
+export default function EnglishLayout({
+  children,
+}: Readonly<{ children: React.ReactNode }>) {
+  return <SiteRoot locale="en">{children}</SiteRoot>;
+}