v0.1.1 - Bootstrap frontend rendering via Twig templates

Replace FSE block markup on the frontend with proper Bootstrap 5 HTML
rendered through Twig templates. The Site Editor remains functional for
admin editing while the public site outputs Bootstrap navbar, cards,
pagination, grid layout, and responsive components.

New PHP classes: TemplateController, ContextBuilder, NavWalker
New Twig templates: 20 files (base, pages, partials, components)
Enhanced TwigService with WordPress functions and globals

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

views/pages/single.html.twig

@@ -0,0 +1,50 @@
+{% extends 'base.html.twig' %}
+
+{% block content %}
+<div class="container">
+    <article class="py-4">
+        <header class="mb-4">
+            <h1>{{ post.title }}</h1>
+            {% include 'partials/meta.html.twig' %}
+        </header>
+
+        {% if post.thumbnail %}
+            <figure class="mb-4">
+                <img src="{{ post.thumbnail }}" class="img-fluid rounded"
+                     alt="{{ post.title|e('html_attr') }}"
+                     style="aspect-ratio: 16/9; object-fit: cover; width: 100%;">
+            </figure>
+        {% endif %}
+
+        <div class="post-content">
+            {{ post.content|raw }}
+        </div>
+
+        {% if post.tags|length > 0 %}
+            <div class="mt-4 mb-4">
+                {% for tag in post.tags %}
+                    <a href="{{ tag.url }}" class="badge bg-secondary text-decoration-none me-1">
+                        {{ tag.name }}
+                    </a>
+                {% endfor %}
+            </div>
+        {% endif %}
+
+        {% include 'partials/post-navigation.html.twig' %}
+        {% include 'partials/comments.html.twig' %}
+    </article>
+
+    {% if more_posts is defined and more_posts|length > 0 %}
+        <section class="py-5 border-top">
+            <h2 class="h4 mb-4">{{ __('More posts') }}</h2>
+            <div class="row row-cols-1 row-cols-md-3 g-4">
+                {% for post in more_posts %}
+                    <div class="col">
+                        {% include 'components/card-post-grid.html.twig' with {'post': post} only %}
+                    </div>
+                {% endfor %}
+            </div>
+        </section>
+    {% endif %}
+</div>
+{% endblock %}