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/archive.html.twig

@@ -0,0 +1,12 @@
+{% extends 'base.html.twig' %}
+
+{% block content %}
+<div class="container">
+    <h1 class="mb-2">{{ archive.title|raw }}</h1>
+    {% if archive.description %}
+        <div class="lead text-body-secondary mb-4">{{ archive.description|raw }}</div>
+    {% endif %}
+
+    {% include 'components/post-loop.html.twig' %}
+</div>
+{% endblock %}