v1.6.0

Added — interactive TUI

• nightshift ui — interactive terminal UI (scripts/nightshift-ui.sh, 395 lines). Live view of task list with selection cursor, current phase, validation/chrome attempt counters, last error, and a scrollable log/event pane. Refreshes every 0.2s. q to quit, arrow keys to navigate, toggles for log mode. Pure bash + python3 (for JSON parse). No external TUI library.
• Runner state + event emitters. Both run-agent-loop.sh and nightshift-bulletproof.sh now write .agent-logs/run_state.json (current snapshot) and append to .agent-logs/run_events.jsonl (event log) at every phase transition: run_start, task/step_start, validate_start, validate_failed, chrome_start, task/step_complete, tasks_complete, run_complete, stopped. This powers the TUI and any external monitoring.
• ROADMAP-UI.md — staged plan for evolving the TUI toward a Claude-Code-like experience.

Fixed

• TUI task-list rendering showed doubled checkboxes ([ ] - [ ]). Cause: ${line#- [ ] } parameter strip — bash parses [ ] as a glob character class (one space), not literal brackets, so the prefix was never stripped. Fixed with fixed 6-char offset (${line:6}), since the - [x] checkbox prefix is always exactly 6 chars.

Added — distribution + docs (from this session)

• USAGE.md — consolidated how-to-use guide (three install paths + troubleshooting). Surfaces the "must run /plugin install AFTER /plugin marketplace add" gotcha.
• .github/workflows/npm-publish.yml — auto-publish to npm on tag push (needs NPM_TOKEN secret with bypass-2FA; fails-safe when missing).
• Branch protection on main with 8 required status checks. No force-push, no deletion.
• README install section links to USAGE.md and clarifies the /plugin install + full-restart requirement.