v0.1.2

Added

• Persistent HTTP dashboard service. The dashboard now runs as a long-lived
  companion at http://127.0.0.1:7780 instead of a transient bridge that exits
  after 5 minutes idle — bookmark it, leave the tab open, no terminal required.
  • New [dashboard] profile section (enabled, bind, port) in
    profile.toml; defaults to loopback 127.0.0.1:7780, opt-out via
    enabled = false.
  • New k2so dashboard subcommand runs the persistent bridge (foreground; used
    by the k2so-dashboard.service companion unit under R2-D2).
  • k2so open now opens the persistent URL in a browser, falling back to the
    transient bridge only when the persistent service is down.
  • Version now shown in the k2so help banner (k2so — background desktop agent (v0.1.2)).

Changed

• The core k2so serve daemon stays Unix-socket-only; the dashboard companion
  is the sole TCP listener, bound to loopback.