Initial commit: Grav CMS setup with HTML reference material

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/form/templates/form.html.twig

@@ -0,0 +1,8 @@
+{% extends 'partials/base.html.twig' %}
+
+{% block content %}
+
+    {{ content|raw }}
+    {% include "forms/form.html.twig" %}
+
+{% endblock %}