Fix unstyled pages: rename base.html.twig to avoid parent collision

The child's templates/base.html.twig was shadowing the parent's
views/base.html.twig (full HTML page shell) because prependPath()
made Twig find the child's minimal wrapper first. Rename to
wc-base.html.twig so the parent's page shell renders correctly.

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

templates/archive-product.html.twig

@@ -16,7 +16,7 @@
  # @since 0.1.0
  #}
 
-{% extends "base.html.twig" %}
+{% extends "wc-base.html.twig" %}
 
 {% block breadcrumbs %}
     {{ do_action('woocommerce_before_main_content') }}

templates/global/breadcrumb.html.twig

@@ -2,7 +2,7 @@
  # Shop Breadcrumb (Bootstrap 5 Override)
  #
  # Replaces WooCommerce's breadcrumb with Bootstrap 5 breadcrumb component.
- # Skipped when parent theme is wrapping (base.html.twig handles breadcrumbs).
+ # Skipped when parent theme is wrapping (wc-base.html.twig handles breadcrumbs).
  #
  # Expected context (from WooCommerce woocommerce_breadcrumb()):
  #   breadcrumb  - Array of [label, url] tuples

templates/global/wrapper-start.html.twig

@@ -3,7 +3,7 @@
  #
  # Replaces WooCommerce's theme-specific wrapper divs with Bootstrap 5 layout.
  # When the parent theme wraps the page (_theme_wrapped), this outputs nothing
- # since base.html.twig already provides the container.
+ # since wc-base.html.twig already provides the container.
  #
  # WooCommerce PHP equivalent: global/wrapper-start.php
  #

templates/layouts/account.html.twig

@@ -7,7 +7,7 @@
  # @since 0.1.0
  #}
 
-{% extends "base.html.twig" %}
+{% extends "wc-base.html.twig" %}
 
 {% block content %}
     <div class="mb-4">

templates/layouts/archive.html.twig

@@ -8,7 +8,7 @@
  # @since 0.1.0
  #}
 
-{% extends "base.html.twig" %}
+{% extends "wc-base.html.twig" %}
 
 {% block content %}
     <div class="mb-4">

templates/layouts/form.html.twig

@@ -8,7 +8,7 @@
  # @since 0.1.0
  #}
 
-{% extends "base.html.twig" %}
+{% extends "wc-base.html.twig" %}
 
 {% block content %}
     <div class="row justify-content-center">

templates/layouts/page.html.twig

@@ -7,7 +7,7 @@
  # @since 0.1.0
  #}
 
-{% extends "base.html.twig" %}
+{% extends "wc-base.html.twig" %}
 
 {% block content %}
     <div class="mb-4">

templates/layouts/single.html.twig

@@ -9,7 +9,7 @@
  # @since 0.1.0
  #}
 
-{% extends "base.html.twig" %}
+{% extends "wc-base.html.twig" %}
 
 {% block content %}
     <article>

templates/wc-base.html.twig

@@ -1,7 +1,8 @@
 {#
  # Base Template (Bootstrap 5 Override)
  #
- # Overrides the plugin's base.html.twig with Bootstrap 5 components.
+ # WooCommerce base layout (renamed from base.html.twig to avoid
+ # shadowing the parent theme's full page shell).
  # Provides the basic structure and block definitions.
  #
  # When _theme_wrapped is true, the parent theme already provides the page