feat: automatikus nyelvfelismerés navigator.language alapján, fallback angol

Első látogatásnál a böngésző nyelvéből (hu/ru/en) állapítja meg a wiki
nyelvét és elmenti localStorage-ba. Ismeretlen nyelveknél angolra vált.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: TornadoGamesNow

src/i18n/lang.ts

@@ -4,10 +4,13 @@ const LANG_KEY = 'mite-wiki-lang';
 const LANG_EVENT = 'mite-lang-change';
 
 export function getCurrentLang(): Lang {
-  if (typeof window === 'undefined') return 'hu';
-  return (localStorage.getItem(LANG_KEY) as Lang) ||
-    (document.documentElement.getAttribute('data-lang-init') as Lang) ||
-    'hu';
+  if (typeof window === 'undefined') return 'en';
+  const stored = localStorage.getItem(LANG_KEY) as Lang;
+  if (stored === 'hu' || stored === 'en' || stored === 'ru') return stored;
+  const nav = (navigator.language || '').toLowerCase();
+  const detected: Lang = nav.startsWith('hu') ? 'hu' : nav.startsWith('ru') ? 'ru' : 'en';
+  localStorage.setItem(LANG_KEY, detected);
+  return detected;
 }
 
 export function setCurrentLang(lang: Lang): void {

src/layouts/BaseLayout.astro

@@ -35,7 +35,12 @@ const ogImageURL = new URL(`${base}/img/og-banner.png`, Astro.site).href;
   <script is:inline>
     (function(){
       var l = localStorage.getItem('mite-wiki-lang');
-      if (l === 'hu' || l === 'en' || l === 'ru') document.documentElement.setAttribute('data-lang-init', l);
+      if (!(l === 'hu' || l === 'en' || l === 'ru')) {
+        var nav = (navigator.language || '').toLowerCase();
+        l = nav.startsWith('hu') ? 'hu' : nav.startsWith('ru') ? 'ru' : 'en';
+        localStorage.setItem('mite-wiki-lang', l);
+      }
+      document.documentElement.setAttribute('data-lang-init', l);
     })();
   </script>
 </head>