- Change status from 'question' to 'questions' (plural)
- Add QuestionItem with id field for answer matching
- Update PendingQuestion to PendingQuestions with questions array
- Update AgentWaitingEvent payload to questions array
- Update ClaudeAgentManager and MockAgentManager adapters
- Update TestHarness and all test files
- Add setAgentDone() for done status scenarios
- Add setAgentQuestion() for question status scenarios
- Add setAgentError() for unrecoverable_error scenarios
- Add getPendingQuestion() to harness interface
- Import PendingQuestion type from agent/types
- Add TestHarness interface with all system components and helpers
- Add createTestHarness() factory wiring full system with mocks
- Add MockWorktreeManager (in-memory worktree simulation)
- Add CapturingEventBus (event capture for verification)
- Wire real DispatchManager and CoordinationManager with mocks
- Export all components via src/test/index.ts
