Initial static site implementation

- Node.js build script with gray-matter and marked
- Self-hosted fonts (DM Serif Display, Karla)
- Swedish badge system for origin transparency
- Filtering by category, region, tags, and search
- URL-based filter state for shareable links
- Individual entry pages
- About and badge info pages
- Privacy-focused: no cookies, no tracking, no external requests
- Hosted in Lerum, Sweden

templates/partials/footer.html

@@ -0,0 +1,10 @@
+  <footer class="site-footer">
+    <div class="container">
+      <p>Ursprung Sverige &copy; {{ year }}</p>
+      <p class="footer-tagline">Stöd svensk ekonomi och kultur</p>
+      <nav class="footer-nav">
+        <a href="{{ rootPath }}om-oss.html">Om oss</a>
+        <a href="{{ rootPath }}om-markning.html">Om märkning</a>
+      </nav>
+    </div>
+  </footer>