fix: apply QA fixes to correct build source (public/src/)

- BUG-055: Remove duplicate preconnect tags from homepage
- BUG-058: Add twitter:image meta tag to homepage
- BUG-060: Add og:title/description/url to sub-pages (impressum/privacy/terms/status)
- BUG-061: Already done in sitemap.xml
- BUG-067: Add skip-to-content link via nav partial + styles_base
- BUG-069: Footer already added to docs.html
- BUG-053: Minify app.js and status.js, update HTML refs

public/src/index.html

@@ -13,9 +13,8 @@
 <meta name="twitter:card" content="summary_large_image">
 <meta name="twitter:title" content="DocFast — HTML & Markdown to PDF API">
 <meta name="twitter:description" content="Convert HTML and Markdown to beautiful PDFs with a simple API call.">
+<meta name="twitter:image" content="https://docfast.dev/og-image.png">
 <link rel="canonical" href="https://docfast.dev">
-<link rel="preconnect" href="https://fonts.googleapis.com">
-<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
 <script type="application/ld+json">
 {"@context":"https://schema.org","@type":"SoftwareApplication","name":"DocFast","url":"https://docfast.dev","applicationCategory":"DeveloperApplication","operatingSystem":"Web","description":"Convert HTML and Markdown to beautiful PDFs with a simple API call. Fast, reliable, developer-friendly.","offers":[{"@type":"Offer","price":"0","priceCurrency":"EUR","name":"Free","description":"100 PDFs/month"},{"@type":"Offer","price":"9","priceCurrency":"EUR","name":"Pro","description":"2,500 PDFs per month","billingIncrement":"P1M"}]}
 </script>
@@ -30,7 +29,7 @@
 
 {{> nav}}
 
-<main role="main">
+<main role="main" id="main">
 <section class="hero">
   <div class="container">
     <div class="badge">🚀 Simple PDF API for Developers</div>
@@ -219,7 +218,7 @@
 </div>
 
 
-<script src="/app.js"></script>
+<script src="/app.min.js"></script>
 
 </body>
 </html>