v1.8.0

Added — nightshift ui v2: Claude-Code-grade Ink TUI (Milestone 1)

A ground-up rebuild of the dashboard as a real terminal UI (Node + Ink/React),
replacing the hand-rolled bash ANSI renderer. It is a drop-in client of the
same .agent-logs/ file protocol, so the bash runners are unchanged.

• New ui/ workspace — TypeScript + Ink, bundled by esbuild into a single
  self-contained ui/dist/cli.js (no node_modules ships or installs). Requires
  Node 22+ (ink 7's floor); bin/nightshift gates on it and falls back to the
  bash UI below that.
• bin/nightshift ui dispatch — uses the Ink TUI when Node 22+ and the
  bundle are present, otherwise falls back to the bash UI (scripts/nightshift-ui.sh,
  retained). NIGHTSHIFT_UI_BASH=1 forces the fallback.
• Milestone 1 parity + polish — status badge with live spinner, progress
  bar, cost, two-pane tasks + log (summary/events toggle, t), commit preview
  for a selected done task, status footer, message bar, help overlay (?),
  keyboard nav (j/k, arrows, g/G), and the full cooperative control set
  (i// message, p/r/n/s/x, K), all writing the existing control channel.
  Honors NO_COLOR, non-TTY (prints a hint), and --attach DIR.
• Tests + CI — ui/test/protocol.test.ts (8 assertions, the file-protocol
  IO layer) plus a headless selftest frame; new ui-build CI job runs typecheck,
  unit tests, build, and the selftest. The bash protocol test still guards the
  runner side.

Next milestones (per docs/superpowers/specs/2026-05-30-nightshift-ui-v2-ink-tui-design.md):
live agent stream, diff viewer + log scrollback/search, richer messaging
(multiline + delivery ack), mouse + live metrics.