Fix CSS dependency handle and update documentation

Correct wc-bootstrap-overrides stylesheet dependency from unregistered
'woocommerce' handle to 'woocommerce-general'. Update README directory
structure to reflect wc-base.html.twig rename and .env-dist location.
Add Fixed section to CHANGELOG.

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

functions.php

@@ -114,7 +114,7 @@ function wc_bootstrap_enqueue_styles(): void {
     wp_enqueue_style(
         'wc-bootstrap-overrides',
         get_stylesheet_directory_uri() . '/assets/css/wc-bootstrap.css',
-        array( 'wc-bootstrap-style', 'woocommerce' ),
+        array( 'wc-bootstrap-style', 'woocommerce-general' ),
         $theme_version
     );
 }