site: favicon, robots.txt, sitemap e SEO base

- Aggiungi favicon.svg (icona libro)
- Crea robots.txt per indicizzazione
- Crea sitemap.xml per search engines
- Aggiungi meta keywords
- Aggiungi canonical URL
- Aggiungi JSON-LD structured data (Schema.org SoftwareApplication)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: aborruso

site/_layouts/default.html

@@ -7,6 +7,8 @@
 
     <title>{% if page.title %}{{ page.title }} | {% endif %}{{ site.title }}</title>
     <meta name="description" content="{{ site.description }}">
+    <meta name="keywords" content="normattiva, markdown, AI, LLM, leggi italiane, conversione XML, Akoma Ntoso, normativa italiana, RAG, chatbot legale, API normattiva">
+    <link rel="canonical" href="{{ site.url }}{{ site.baseurl }}{{ page.url }}">
 
     <!-- Open Graph / Facebook -->
     <meta property="og:type" content="website">
@@ -25,6 +27,37 @@
     <meta name="twitter:description" content="{{ site.description }}">
     <meta name="twitter:image" content="{{ site.url }}{{ site.baseurl }}/assets/og-image.png">
 
+    <!-- Favicon -->
+    <link rel="icon" type="image/svg+xml" href="{{ site.baseurl }}/assets/favicon.svg">
+
+    <!-- JSON-LD Structured Data -->
+    <script type="application/ld+json">
+    {
+      "@context": "https://schema.org",
+      "@type": "SoftwareApplication",
+      "name": "normattiva2md",
+      "description": "{{ site.description }}",
+      "url": "{{ site.url }}{{ site.baseurl }}/",
+      "applicationCategory": "DeveloperApplication",
+      "operatingSystem": "Linux, macOS, Windows",
+      "offers": {
+        "@type": "Offer",
+        "price": "0",
+        "priceCurrency": "EUR"
+      },
+      "author": {
+        "@type": "Organization",
+        "name": "onData",
+        "url": "https://www.ondata.it"
+      },
+      "softwareVersion": "2.0.21",
+      "programmingLanguage": "Python",
+      "codeRepository": "https://github.com/ondata/normattiva_2_md",
+      "license": "https://opensource.org/licenses/MIT",
+      "keywords": "normattiva, markdown, AI, LLM, leggi italiane, conversione XML, Akoma Ntoso"
+    }
+    </script>
+
     <!-- Google Fonts -->
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>

site/assets/favicon.svg

@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://ondata.github.io/normattiva_2_md/sitemap.xml

site/robots.txt

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <url>
+    <loc>https://ondata.github.io/normattiva_2_md/</loc>
+    <lastmod>2026-01-06</lastmod>
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+</urlset>