- lint.yml: add notify-failure Matrix alert job
- test.yml: new workflow running pytest with pytest-cov for coverage
- .coveragerc: omit tests and site-packages from coverage
- .gitignore: ignore __pycache__ and .pyc files
- tests/test_hwmon.py: 49 unit tests covering SystemHealthMonitor
(temperature parsing, service monitoring, disk usage, metric collection,
dry run behaviour); uses unittest.mock to isolate from env/filesystem
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>