Minimum viable structure for the Tool-MAD coordinator:
- coordinator.config: env-loaded Config dataclass, writes state to ~/.coordinator/
- coordinator.multica_client: thin requests wrapper for issues/comments/agents
- coordinator.state: flat-json SeenState tracking issue_id -> last_seen_updated_at
- coordinator.__main__: watch_loop() that polls in_review and logs candidates
- README.md: why this exists + how to run
v0 only detects in_review transitions; convening debate rounds is WYL-45.
Dependencies: stdlib + requests (nothing else until a working v1 ships).
