v0.6.0

Minor Changes

• #18 6b5acfb Thanks @kkukielka! - Add support for the button block (WordPress-style CTA + Media Library file download). Link mode renders an <a> with href/target/rel/aria-label; file mode renders a download link with an optional file-type icon (showFileIcon) and human-readable size (showFileSize). The style object is applied as inline CSS, alignment controls a block-level wrapper, and hover colors are exposed as --bb-button-hover-* custom properties wired up by a scoped stylesheet (hover transition + keyboard focus ring, zero client-side JavaScript). The block is overridable through the blocks.button prop.