Initializes the foundational `core`-module, which will act as the "Shared Kernel" for the entire Meldestelle_Pro ecosystem. This commit establishes the central building blocks required by all other domains.
- **Ubiquitous Language:** Defines core enums (`SparteE`, `PferdeGeschlechtE`, `DatenQuelleE`, `RolleE`, `BerechtigungE`) to ensure a consistent language across all services.
- **API Consistency:** Implements standardized DTOs (`ApiResponse`, `PagedResponse`, `EntityDto`) to guarantee that all APIs have a uniform structure.
- **Domain Events:** Creates the base interfaces (`DomainEvent`, `DomainEventPublisher`) for our event-driven architecture.
- **Error Handling & Validation:** Introduces a functional `Result` type for robust error handling and `ValidationResult` for business rule validation within domain entities.
- **Serialization:** Provides common serializers for standard data types like `UUID` and `Instant` to ensure data consistency.
This foundational module is a critical prerequisite for the development of all subsequent domain services, starting with the `masterdata-service`.
StefanMoCoAt
f9d9d01b21