Fix template quirks and bump version to 0.1.0

Audit and fix 14 Twig templates for escaping bugs, CSS conflicts,
and missing Bootstrap styling:
- Fix nl2br/esc_html filter order in order details
- Add WC gallery modifier classes for zoom/photoswipe JS init
- Fix HTML entity double-encoding in headings (up-sells, cross-sells, related)
- Remove wrong 'is defined' guards on function calls
- Remove duplicate deprecated hooks in dashboard
- Add |raw to brand description HTML filter chain
- Add role="alert" for accessibility, |esc_attr on notification types
- Style mini-cart remove button as Bootstrap btn
- Make shipping form-check class conditional
- Add shop_table CSS reset and gallery opacity fallback

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

templates/single-product/add-to-cart/variation.html.twig

@@ -26,7 +26,7 @@
 {% endverbatim %}
 
 <script type="text/template" id="tmpl-unavailable-variation-template">
-    <p class="alert alert-warning mb-0">
+    <p class="alert alert-warning mb-0" role="alert">
         {{ __('Sorry, this product is unavailable. Please choose a different combination.') }}
     </p>
 </script>