- Launch lists folders and reads only sections whose listing changed, using a
  per-notebook discovery cache; the open section is woken by the notebook's
  watch instead of polling; search rereads only changed sections; macOS smbfs
  mounts are watched per folder.
- Each section file is read once per launch: discovery hands its images to
  the background, and dot-files and ~$ files no longer break discovery.
- iOS: Apple Pencil draws through the shared ink tools, with a compact tool
  tray, shapes, the section accent as the default pen on both platforms, and
  the Pencil-only system setting respected.
- The light accent shade has one home in draw.
- AGENTS.md describes change-driven sync.

Assisted-by: claude-opus-5.5