v0.28.0-beta.0

Delta since previous beta (v0.27.1-beta.1) — 1 new changeset.

Minor Changes

• Link authoring in the visual editor now matches the conventions of the editors
  you already know. Typing a full URL (https://…, www.…, or an email) and
  pressing space or enter converts it to a link — including local-development
  URLs like http://localhost:5174 — while plain words and filenames like
  AGENTS.md are never touched, and one undo restores plain text. Pasting or
  dropping a lone URL links it; pasting a URL over selected text links that text
  instead; Cmd+Shift+V still pastes plain. Typing markdown's [text](url)
  shorthand converts on the closing parenthesis. Cmd+K is now dual-role: with
  text selected it opens the link popover (focused, pre-filled from your
  clipboard when it holds a URL), with the cursor inside a link it opens that
  link for editing, and everywhere else it keeps opening the command palette.
  Linkification never fires on content written by other collaborators or agents
  — only on your own local typing and paste gestures. Also fixes two
  long-standing popover bugs: the URL input now reliably takes focus on open,
  and Escape correctly closes the popover after dismissing path suggestions.