- Refactor Tests.php controller with updated logic and error handling
- Update Test migration with schema improvements
- Enhance TestDefCalModel, TestDefGrpModel, TestDefTechModel with CRUD operations
- Improve TestMapModel with better test mapping relationships
- Redesign test dialog views (calc, group, param) with improved UX
- Update tests_index view with better data presentation
- Add CSS styles for test management UI components
- Add TestDefSiteTest feature test for site-based test definitions
- Add TestDefModelsTest unit test for model validation
- Remove obsolete Test Management.docx documentation
