Move sculpin-old files to sculpin-old directory

sculpin-old/source/articles/archive.html.twig

@@ -0,0 +1,26 @@
+---
+layout: default
+title: Archive
+use: [posts]
+---
+{% block content %}
+    <header class="spaced-y-4 mb-6">
+        <p class="text-lg">Everything I've ever published on my site, in reverse chronological order.</p>
+        <p class="text-lg">You can also subscribe via <a href="/feed">the RSS feed</a>.</p>
+    </header>
+
+    <div class="-mx-4 spaced-y-4">
+        {% for post in data.posts %}
+            <article class="p-4 {{ post.draft ? 'bg-blue-200' }}">
+                {% include 'blog/post-summary' with {
+                    post: post,
+                    show_date: true,
+                } %}
+            </article>
+        {% endfor %}
+    </div>
+{% endblock %}
+
+{% block scripts %}
+    <script>hljs.initHighlightingOnLoad();</script>
+{% endblock %}