v0.40.0

Added

• Publish X Articles natively. The article compose view now has a Post to X button that publishes your long-form Article straight to X — title, cover image, and formatting (headings, bold/italic, links, lists, blockquotes, code) carried over — instead of copy-pasting into X's web editor. Works on both the managed Publish path and the direct bring-your-own-key X plugin; Copy as HTML stays as a fallback.