fix(legal): show legal pages in site language with bidirectional toggle

Wire legal pages to LanguageContext, pass locale on footer/booking links,
translate layout chrome, and restore SSR content when switching back to English.

frontend/src/components/layout/LegalPageLayout.tsx

@@ -1,17 +1,74 @@
 'use client';
 
+import { useEffect, useState } from 'react';
 import ReactMarkdown from 'react-markdown';
 import remarkGfm from 'remark-gfm';
 import Link from 'next/link';
 import { ArrowLeftIcon } from '@heroicons/react/24/outline';
+import { useLanguage } from '@/context/LanguageContext';
+import { legalPagesApi } from '@/lib/api';
 
 interface LegalPageLayoutProps {
+  slug: string;
+  initialLocale: 'en' | 'es';
   title: string;
   content: string;
   lastUpdated?: string;
 }
 
-export default function LegalPageLayout({ title, content, lastUpdated }: LegalPageLayoutProps) {
+function extractLastUpdated(contentMarkdown: string, updatedAt?: string): string | undefined {
+  const match = contentMarkdown?.match(/Last updated:\s*(.+)/i);
+  return match ? match[1].trim() : updatedAt;
+}
+
+export default function LegalPageLayout({
+  slug,
+  initialLocale,
+  title: initialTitle,
+  content: initialContent,
+  lastUpdated: initialLastUpdated,
+}: LegalPageLayoutProps) {
+  const { locale, t } = useLanguage();
+  const [title, setTitle] = useState(initialTitle);
+  const [content, setContent] = useState(initialContent);
+  const [lastUpdated, setLastUpdated] = useState(initialLastUpdated);
+  const [loadedLocale, setLoadedLocale] = useState(initialLocale);
+
+  useEffect(() => {
+    if (locale === loadedLocale) {
+      return;
+    }
+
+    // Returning to the server-rendered language: restore SSR content without a fetch
+    if (locale === initialLocale) {
+      setTitle(initialTitle);
+      setContent(initialContent);
+      setLastUpdated(initialLastUpdated);
+      setLoadedLocale(initialLocale);
+      return;
+    }
+
+    let cancelled = false;
+    legalPagesApi
+      .getBySlug(slug, locale)
+      .then(({ page }) => {
+        if (cancelled || !page) {
+          return;
+        }
+        setTitle(page.title);
+        setContent(page.contentMarkdown);
+        setLastUpdated(extractLastUpdated(page.contentMarkdown, page.updatedAt));
+        setLoadedLocale(locale);
+      })
+      .catch(() => {
+        // Keep the server-rendered content if the re-fetch fails
+      });
+
+    return () => {
+      cancelled = true;
+    };
+  }, [locale, loadedLocale, initialLocale, slug, initialTitle, initialContent, initialLastUpdated]);
+
   return (
     <div className="section-padding">
       <div className="container-page max-w-4xl">
@@ -21,7 +78,7 @@ export default function LegalPageLayout({ title, content, lastUpdated }: LegalPa
           className="inline-flex items-center text-gray-600 hover:text-primary-dark transition-colors mb-8"
         >
           <ArrowLeftIcon className="w-4 h-4 mr-2" />
-          Back to Home
+          {t('legalPage.backToHome')}
         </Link>
 
         {/* Title */}
@@ -31,7 +88,7 @@ export default function LegalPageLayout({ title, content, lastUpdated }: LegalPa
           </h1>
           {lastUpdated && lastUpdated !== '[Insert Date]' && (
             <p className="text-sm text-gray-500">
-              Last updated: {lastUpdated}
+              {t('legalPage.lastUpdated', { date: lastUpdated })}
             </p>
           )}
         </div>
@@ -182,7 +239,7 @@ export default function LegalPageLayout({ title, content, lastUpdated }: LegalPa
             onClick={() => window.scrollTo({ top: 0, behavior: 'smooth' })}
             className="text-gray-500 hover:text-primary-dark transition-colors text-sm"
           >
-            Back to top
+            {t('legalPage.backToTop')}
           </button>
         </div>
       </div>