Bump version to 0.27.4

CHANGELOG.md

@@ -4,6 +4,26 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
+## [0.27.4] - 2026-09-29
+### Added
+- Generic `.bbk-notice` / `.bbk-notice--info` message box and a
+  `--bbk-color-info` custom property in `checkout.css`.
+- Cart drawer focus handling: focus moves into the drawer on open, stays
+  inside it, returns to the opener on close, and is restored after each
+  cart update. Updates are announced as "Cart updated" instead of re-reading
+  the whole cart. New translation line `checkout.cart.updated` — re-run
+  `CheckoutTranslationsSeeder` in consuming apps to add it.
+
+### Changed
+- Cart drawer line: larger remove button on the title row, line total on
+  the quantity-stepper row, and screen-reader labels tied to the product
+  name. `.bbk-cart-item-aside` is removed — hosts restyling it should target
+  `.bbk-cart-item-head` / `.bbk-cart-item-foot` instead.
+- Order confirmation page: narrower (560px), the confirmation-email note is
+  now an info box under the heading, the order summary comes before
+  shipping/billing (shown side by side), and the order number is prefixed
+  with `#`.
+
 ## [0.27.3] - 2026-09-29
 ### Added
 - The checkout confirmation page now ends with the store's bank transfer