Created a new `RegroupmentRepositoryInterface` to define repository methods for Regroupment entities. Updated `RegroupmentRepository` to implement this interface, and replaced its usage in `ExportConfigNormalizer` for better abstraction and testability.
Simplified formatter and aggregator logic by removing redundant fields and improving method checks (e.g., `hasAggregator`, `hasFilter`). Adjusted test cases to align with the updated structure and added tests for empty data normalization and denormalization. Improved code readability and ensured better handling of edge cases in export data processing.
This change improves clarity by making the method name more descriptive and aligned with its purpose. All relevant interfaces, classes, and tests have been updated accordingly to reflect this renaming.