v0.2.0 - Design Editor: templates, patterns, header/footer variations

Full Design Editor compatibility with custom block categories, page templates,
header/footer variations, and navigation styles. Both FSE (admin) and Twig
(frontend) sides kept in sync.

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

views/pages/hero.html.twig

@@ -0,0 +1,21 @@
+{% extends 'base.html.twig' %}
+
+{% block main_class %}{% endblock %}
+
+{% block content %}
+<section class="bg-primary text-white py-5 mb-5{% if post.thumbnail %} position-relative overflow-hidden{% endif %}">
+    {% if post.thumbnail %}
+        <div class="position-absolute top-0 start-0 w-100 h-100" style="background: url('{{ post.thumbnail }}') center/cover no-repeat; opacity: 0.3;"></div>
+    {% endif %}
+    <div class="container position-relative py-5 text-center">
+        <h1 class="display-4 fw-bold">{{ post.title }}</h1>
+    </div>
+</section>
+<div class="container">
+    <article>
+        <div class="post-content">
+            {{ post.content|raw }}
+        </div>
+    </article>
+</div>
+{% endblock %}