Fix span: 0 bug and panel ordering in v16 dashboard migration
Fix span: 0 handling to match frontend behavior by defaulting to DEFAULT_PANEL_SPAN.
Fix panel ordering issue by using stable sort instead of unstable sort.
Fix collapsed property handling to only set when input row has collapse property.
Add comprehensive test cases for span: 0 bug and collapsed property behavior.
Add sanitized test input file for span: 0 demo dashboard with generic values instead of internal Grafana infrastructure references.
All backend migration tests and frontend comparison tests pass.
- Fix metricEditorMode logic to match frontend hasOwnProperty behavior
- Fix metricQueryType to only set when property doesn't exist
- Fix statistics processing to handle all types like frontend does
- Fix null statistic handling to match frontend behavior
- Fix object string representation to match JavaScript behavior
- Add comprehensive test coverage for all CloudWatch migration scenarios
- Achieve 100% backend-frontend consistency for v34 migration
* Fix v34 CloudWatch migration backend-frontend inconsistencies
- Fix metricEditorMode logic to match frontend hasOwnProperty behavior
- Fix metricQueryType to only set when property doesn't exist
- Fix statistics processing to handle all types like frontend does
- Fix null statistic handling to match frontend behavior
- Fix object string representation to match JavaScript behavior
- Add comprehensive test coverage for all CloudWatch migration scenarios
- Achieve 100% backend-frontend consistency for v34 migration
* Improve v34 CloudWatch migration test coverage
- Add targeted tests for hasOwnProperty logic coverage
- Add comprehensive getSuffixForStat coverage (all data types)
- Add generateNextRefId double letter generation tests
- Simplify test cases while maintaining full coverage
- Achieve 93%+ coverage on all critical v34 functions
- Remove redundant test cases for better maintainability
* Clean up v34 CloudWatch migration code
- Remove unnecessary comments and documentation
- Simplify function signatures and logic
- Maintain functionality while improving readability
- Keep essential logic intact with cleaner code
* Only remove unnecessary comments