Patch release adding reference and ground-truth quality checks.
Added:
- Reference and ground-truth comparison helpers through ReferenceValue, compare_to_reference(), compare_to_references(), and evidence_from_reference_comparison().
- Aggregated reference quality evidence for multi-field records, mapping predefined reference checks into consistency and anomaly-detection evidence.
- Documentation for scientific use, value-quality checks, and the distinction between payload integrity and measurement quality.
Verification:
- pytest: 39 passed
- mkdocs build --strict passed
- twine check passed for 0.6.1 wheel and sdist