chore: add robots.txt and sitemap.xml configuration

app/robots.ts

@@ -0,0 +1,30 @@
+import type { MetadataRoute } from 'next';
+
+const PROTECTED = ['/admin/', '/api/'];
+
+export default function robots(): MetadataRoute.Robots {
+  return {
+    rules: [
+      {
+        userAgent: '*',
+        allow: '/',
+        disallow: PROTECTED,
+      },
+      // AI arama / citation botları
+      { userAgent: 'OAI-SearchBot', allow: '/', disallow: PROTECTED },
+      { userAgent: 'ChatGPT-User', allow: '/', disallow: PROTECTED },
+      { userAgent: 'PerplexityBot', allow: '/', disallow: PROTECTED },
+      { userAgent: 'Perplexity-User', allow: '/', disallow: PROTECTED },
+      { userAgent: 'Claude-SearchBot', allow: '/', disallow: PROTECTED },
+      { userAgent: 'Claude-User', allow: '/', disallow: PROTECTED },
+      // Training crawler'ları engelle
+      { userAgent: 'GPTBot', disallow: '/' },
+      { userAgent: 'ClaudeBot', disallow: '/' },
+      { userAgent: 'Google-Extended', disallow: '/' },
+      { userAgent: 'CCBot', disallow: '/' },
+      { userAgent: 'Bytespider', disallow: '/' },        // ByteDance/TikTok
+      { userAgent: 'Meta-ExternalAgent', disallow: '/' }, // Meta training
+    ],
+    sitemap: 'https://menu.moybeachakyaka.com/sitemap.xml',
+  };
+}

app/sitemap.ts

@@ -0,0 +1,13 @@
+import { MetadataRoute } from 'next'
+import { routing } from '@/i18n/routing'
+
+export default function sitemap(): MetadataRoute.Sitemap {
+  const baseUrl = 'https://menu.moybeachakyaka.com'
+  
+  return routing.locales.map((locale) => ({
+    url: `${baseUrl}/${locale}`,
+    lastModified: new Date(),
+    changeFrequency: 'daily',
+    priority: locale === routing.defaultLocale ? 1 : 0.8,
+  }))
+}