PullMark 0.28.0-beta.1

• Margin notes (beta) — leave comments on any local Markdown
  document, the way you would on a pull request. Hover a block for the
  note bubble (or select text first to quote it), write in Markdown,
  and the note is saved into the file itself as a plain HTML comment —
  <!-- note @you: like this --> — invisible to GitHub and every other
  renderer, but rendered by PullMark as a comment bubble pinned to that
  spot. Built for reviewing documents an agent wrote for you: tell the
  agent to address the notes and delete them as it goes, and watch the
  bubbles disappear live.
  • Edit and delete from each bubble; File Margin Note (Edit menu)
    for document-level notes; ⌥⌘M notes the block you're reading.
  • Open Files rows show a comment-count chip while a document still
    carries notes.
  • Notes render read-only in browsed GitHub files, never appear in
    print or exports, and View → Hide Margin Notes clears the page.
  • The format is a documented convention, not an app database:
    pullmark.app/docs/beta/margin-notes
    has the two-sentence spec and a paste-into-your-CLAUDE.md snippet
    for agents.
• A beta channel — this release inaugurates it. Betas are signed
  and notarized like any release; get them with
  brew install --cask jedijashwa/tap/pullmark@beta (or the release
  DMG), and Settings → General → Update channel keeps you on the
  track you choose. Stable installs never see prereleases.