v0.4.2

Added

• Release assets now ship a sha256 checksum next to each archive, and both
  installers (install.sh, install.ps1) verify the download against it before
  extracting or running anything. Fails closed; WARREN_SKIP_VERIFY=1 bypasses.
  Because auto-update re-runs the installer, self-updates are verified too.

Changed

• Dashboard is wider (max 1200px) so the Live nodes table fits all columns
  (including the new Version) without crowding on a normal desktop.

Fixed

• Node auto-update is now actually reachable: --auto-update passed to the
  installer is baked into the boot service (it was previously dropped), and a
  self-update re-runs with the flag so it stays on across an upgrade. Still
  opt-in and off by default. Append --auto-update to the install line to
  enable it (Unix only).