- Add 52 tests achieving 99.3% coverage
- Test all public methods: getLatestPipeline, getPipeline, waitForPipeline, getPipelineLogs
- Test auto-diagnosis for all failure categories
- Test pipeline parsing and status handling
- Mock ConfigService and child_process exec
- All tests passing with >85% coverage requirement met
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>