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/dark-mode-toggle.html.twig

@@ -0,0 +1,21 @@
+<button type="button" class="wp-bootstrap-dark-mode-toggle ms-2"
+        data-bs-theme-toggle
+        aria-label="{{ __('Switch to dark mode') }}"
+        data-label-dark="{{ __('Switch to dark mode') }}"
+        data-label-light="{{ __('Switch to light mode') }}"
+        aria-pressed="false">
+    <svg class="wp-bootstrap-sun-icon" xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="display:none;" aria-hidden="true">
+        <circle cx="12" cy="12" r="5"/>
+        <line x1="12" y1="1" x2="12" y2="3"/>
+        <line x1="12" y1="21" x2="12" y2="23"/>
+        <line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/>
+        <line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/>
+        <line x1="1" y1="12" x2="3" y2="12"/>
+        <line x1="21" y1="12" x2="23" y2="12"/>
+        <line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/>
+        <line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/>
+    </svg>
+    <svg class="wp-bootstrap-moon-icon" xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
+        <path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"/>
+    </svg>
+</button>