feat: wire --resume/--continue CLI flags and add cron scheduler daemon (#16)
Cherry-picked from PR #16 by win4r, excluding auto-compact (already
implemented in a more thorough version based on Claude Code source).
Resume/Continue:
- Wire --continue (most recent session) and --resume (picker/ID) CLI flags
- Pass restore_messages through app.py → backend_host.py → runtime.py
- Uses existing session_storage infrastructure
Cron scheduler daemon:
- oh cron start/stop/status/list/toggle/history subcommands
- Background daemon with 30s tick, concurrent job execution, PID file
- Job state: enabled, last_run, next_run, last_status, created_at
- JSONL execution history at ~/.openharness/data/cron_history.jsonl
- croniter-based expression validation and next-run computation
Cost/usage output in print mode:
- Token usage summary (input/output/total) printed to stderr
- Tool activity indicators during execution
New files: cron_scheduler.py, cron_toggle_tool.py, test_cron.py, test_cron_scheduler.py
Modified: cli.py, runtime.py, app.py, backend_host.py, cron.py, tools/__init__.py
Chao Qin
a6dfa8f56d