- --latest: auto-find most recent thread by start timestamp
- --debug: display .info.jsonl debug log with tags
- --role: filter output to specific role
- Add live-argv.ts for flag parsing
- Add fixtures and test coverage for all flags
Testing: #50
- Add cmd-live.ts: tail .data.jsonl with formatted output
- Display role steps with timestamp, role name, truncated content, meta
- fs.watch for running threads, auto-exit on completion
- Write WorkflowResult to .data.jsonl in worker.ts for completion detection
- Add live.test.ts with JSONL fixtures
Testing: #49