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/index.html.twig

@@ -0,0 +1,20 @@
+{% extends 'base.html.twig' %}
+
+{% block content %}
+<div class="container">
+    <h1 class="mb-4">{{ __('Blog') }}</h1>
+
+    {% if layout == 'sidebar' %}
+        <div class="row">
+            <div class="col-lg-8">
+                {% include 'components/post-loop.html.twig' %}
+            </div>
+            <div class="col-lg-4">
+                {% include 'partials/sidebar.html.twig' %}
+            </div>
+        </div>
+    {% else %}
+        {% include 'components/post-loop.html.twig' %}
+    {% endif %}
+</div>
+{% endblock %}