83cbced678
- Add 62 tests covering all AgentStore public methods (init, CRUD, state transitions, heartbeats, assignments) - Test event emissions (agent:created, agent:updated, agent:deleted, agent:heartbeat, agent:stateChanged) - Test error paths, state transition validation, and concurrency locking - Verify filesystem persistence across store re-initialization - Update coverage gaps doc to mark agent-store.ts as covered