research: Evaluate agent CLI tool for workflow automation

## Description
Investigate agent CLI tool to simplify workflows.

## Research
- Wrapper for uv + poe + scripts
- Commands: agent-cli start/check/submit
- Could package as reusable tooling
- Only implement if clear benefit

## Acceptance Criteria
- [ ] Use cases documented
- [ ] Technical design proposed
- [ ] Decision: implement or defer

**Future Work / Deferred**