v0.4.1 — calmer list tints, working edge auto-scroll

Changed

• Muted tint palettes. The project/topic title tints dropped the saturated
  ANSI set (cyan/yellow/magenta/bright_*) for curated low-saturation tones
  (grey-blue, tan, sage, mauve, …): related sessions still bundle by colour
  when the project column is hidden, but the list stops shouting — and cyan
  is banished from the palettes, keeping it exclusively the needs-you
  accent. display.color_by = none remains for a fully neutral list. A test
  pins the rule (hex-only, bounded saturation, nothing cyan-ish). README
  screenshots and demo GIFs re-rendered to match.

Fixed

• Web mirror: select-mode edge auto-scroll never fired. The edge zones
  were measured on a container that spans the full viewport behind the
  fixed key bar, so the bottom zone sat ~150px under the bar — unreachable.
  Zones now hug the visible terminal box, and the select drag rides a
  window-level mousemove so it keeps extending across the fixed overlays.
  Verified in a real browser (scroll posts every 150ms inside the zone,
  stopping cold outside it).