Health Checks (6.3):
- Add is_healthy property and get_health_status() to Receiver/Sender
- Add is_healthy property and get_health_status() to Collector Subscriber
- Track device, MQTT, and database connection status
Documentation (6.5):
- Update README with Docker Compose profiles documentation
- Add serial device access instructions
- Update API documentation URLs and add health check info
CI/CD (6.6):
- Add .github/workflows/ci.yml for linting, testing, and building
- Add .github/workflows/docker.yml for Docker image builds
- Support Python 3.11 and 3.12 in CI matrix
- Configure Codecov for coverage reporting
End-to-End Testing (6.7):
- Add tests/e2e/ directory with Docker Compose test configuration
- Add e2e test fixtures with service health waiting
- Add comprehensive e2e tests for API, Web, and auth flows
