v1.2.1

1.2.1 - 2026-10-29

• Added an in-app self-updater that checks GitHub Releases, downloads the lean
  update package in the background, and applies it without interrupting an
  active conversion.
• Redesigned the Compare view to match the inspector layout, with a format
  dropdown, zoom slider, and theme-aware styling.
• Fixed plan step numbers not being optically centered and the plan hero card
  shrinking at narrow widths.
• Restored the SVG icons in health checks and format badges, and fixed their
  descriptions.

Full Changelog: v1.2.0...v1.2.1