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/partials/sidebar.html.twig

@@ -0,0 +1,44 @@
+<aside>
+    {% if sidebar.recent_posts is defined and sidebar.recent_posts|length > 0 %}
+        <div class="mb-4">
+            <h3 class="h6 text-uppercase fw-semibold" style="letter-spacing: 1.6px">
+                {{ __('Recent Posts') }}
+            </h3>
+            <ul class="list-unstyled">
+                {% for post in sidebar.recent_posts %}
+                    <li class="mb-2">
+                        <a href="{{ post.url }}" class="text-decoration-none">{{ post.title }}</a>
+                        <br>
+                        <small class="text-body-secondary">{{ post.date }}</small>
+                    </li>
+                {% endfor %}
+            </ul>
+        </div>
+
+        <hr>
+    {% endif %}
+
+    <div class="mb-4">
+        <h3 class="h6 text-uppercase fw-semibold" style="letter-spacing: 1.6px">
+            {{ __('Search') }}
+        </h3>
+        {% include 'partials/search-form.html.twig' %}
+    </div>
+
+    <hr>
+
+    {% if sidebar.tags is defined and sidebar.tags|length > 0 %}
+        <div class="mb-4">
+            <h3 class="h6 text-uppercase fw-semibold" style="letter-spacing: 1.6px">
+                {{ __('Tags') }}
+            </h3>
+            <div>
+                {% for tag in sidebar.tags %}
+                    <a href="{{ tag.url }}" class="badge bg-secondary text-decoration-none me-1 mb-1">
+                        {{ tag.name }}
+                    </a>
+                {% endfor %}
+            </div>
+        </div>
+    {% endif %}
+</aside>