feat(seo): add indexing and discovery metadata

index.html

@@ -5,6 +5,21 @@
     <link rel="icon" type="image/svg+xml" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🤖</text></svg>" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>İhaleist — Akıllı İhale Takip ve Analiz Platformu</title>
+    <meta name="description" content="Kamu ve özel sektör ihalelerini tek yerde takip edin; yapay zeka ile uygunluk, risk ve fırsat analizi yapın." />
+    <meta name="robots" content="index, follow" />
+    <link rel="canonical" href="https://ihaleist.seymata.com/" />
+    <meta property="og:type" content="website" />
+    <meta property="og:locale" content="tr_TR" />
+    <meta property="og:site_name" content="İhaleist" />
+    <meta property="og:title" content="İhaleist — Akıllı İhale Takip ve Analiz Platformu" />
+    <meta property="og:description" content="İhaleleri keşfedin, yapay zeka ile analiz edin ve doğru fırsatlara daha hızlı ulaşın." />
+    <meta property="og:url" content="https://ihaleist.seymata.com/" />
+    <meta name="twitter:card" content="summary" />
+    <meta name="twitter:title" content="İhaleist — Akıllı İhale Takip ve Analiz Platformu" />
+    <meta name="twitter:description" content="Yapay zeka destekli ihale takip, uygunluk ve fırsat analizi." />
+    <script type="application/ld+json">
+      {"@context":"https://schema.org","@type":"SoftwareApplication","name":"İhaleist","applicationCategory":"BusinessApplication","operatingSystem":"Web","url":"https://ihaleist.seymata.com/","description":"Yapay zeka destekli ihale takip ve analiz platformu."}
+    </script>
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap" rel="stylesheet">

public/robots.txt

@@ -0,0 +1,7 @@
+User-agent: *
+Allow: /
+Disallow: /api/
+Disallow: /admin/
+Disallow: /dashboard/
+
+Sitemap: https://ihaleist.seymata.com/sitemap.xml

public/sitemap.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <url><loc>https://ihaleist.seymata.com/</loc><changefreq>daily</changefreq><priority>1.0</priority></url>
+</urlset>