Add RAR Storefront WordPress theme

Implements the Reply All Regrets™ frontend design: retro office aesthetic
with manila/ink/stamp-red/olive palette, Fraunces + JetBrains Mono + Inter
typography. Includes homepage, category, product detail, blog, about, cart
templates with WooCommerce integration and interactive JS (filter, sort, gallery).

Co-Authored-By: Paperclip <noreply@paperclip.ing>

theme/footer.php

@@ -0,0 +1,4 @@
+<?php rar_footer_content(); ?>
+<?php wp_footer(); ?>
+</body>
+</html>