Add FAQ page with structured data

website/src/faq/index.njk

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+---
+layout: base.njk
+title: KST4Contest FAQ
+description: Frequently asked questions about KST4Contest, ON4KST contest operation, AirScout integration and VHF/UHF/SHF contest workflow.
+---
+
+<section class="hero">
+  <h1>Frequently asked questions</h1>
+  <p>
+    Answers about KST4Contest, ON4KST contest operation, downloads,
+    AirScout integration and supported platforms.
+  </p>
+</section>
+
+<section class="section">
+  <div class="card">
+    <h2>What is KST4Contest?</h2>
+    <p>
+      KST4Contest is a contest-optimized ON4KST chat client for VHF, UHF and SHF ham radio contest operation.
+    </p>
+
+    <h2>Is KST4Contest a replacement for wtKST, KST2Me or KSTChat?</h2>
+    <p>
+      KST4Contest follows a different approach. It is focused on contest workflow, priority candidates,
+      sked handling, AirScout support, log synchronization and operator decision support.
+    </p>
+
+    <h2>Which platforms are supported?</h2>
+    <p>
+      KST4Contest provides release artifacts for Windows, Linux and macOS through GitHub Releases.
+    </p>
+
+    <h2>Does KST4Contest support AirScout?</h2>
+    <p>
+      Yes. KST4Contest is designed to integrate AirScout-related workflow information into contest operation.
+    </p>
+
+    <h2>Where can I download KST4Contest?</h2>
+    <p>
+      Official builds are available on the GitHub Releases page.
+    </p>
+  </div>
+</section>
+
+<script type="application/ld+json">
+{
+  "@context": "https://schema.org",
+  "@type": "FAQPage",
+  "mainEntity": [
+    {
+      "@type": "Question",
+      "name": "What is KST4Contest?",
+      "acceptedAnswer": {
+        "@type": "Answer",
+        "text": "KST4Contest is a contest-optimized ON4KST chat client for VHF, UHF and SHF ham radio contest operation."
+      }
+    },
+    {
+      "@type": "Question",
+      "name": "Is KST4Contest a replacement for wtKST, KST2Me or KSTChat?",
+      "acceptedAnswer": {
+        "@type": "Answer",
+        "text": "KST4Contest follows a different approach and focuses on contest workflow, priority candidates, sked handling, AirScout support, log synchronization and operator decision support."
+      }
+    },
+    {
+      "@type": "Question",
+      "name": "Which platforms are supported?",
+      "acceptedAnswer": {
+        "@type": "Answer",
+        "text": "KST4Contest provides release artifacts for Windows, Linux and macOS through GitHub Releases."
+      }
+    }
+  ]
+}
+</script>