Changes

Colección base de endpoints para user, adopter, message y notification.
 (commit: 73966c1)

Creacion archivos pets/users de la API
 (commit: 0f7dd7f)

refactor: enhance Lombok annotations and modernize dependency injection

- Add explicit @Getter and @Setter annotations to entities for better IDE recognition
- Convert service dependency injection from field injection to constructor injection
- Improves code clarity, testability, and follows Spring best practices
- All 316 tests pass successfully
- No functional changes, purely structural improvements
 (commit: 957dd30)

Creacion archivos notifications/messages de la API
 (commit: 0e40390)

Implementacion de las carpetas faltantes, pero con errores
 (commit: 65ad152)

Implementacion de las carpetas faltantes, pero con errores
 (commit: 5c53e48)

feat: Implemento API de user, adopter, message y notification
 (commit: baaf45b)

chore: remove NotificationControllerTest to eliminate execution problems
 (commit: 4186fba)

implement: first implementation of controler tests
 (commit: f884b11)

fix: unification of postman collection
 (commit: 8f49564)

implementation: first attempt of DTOs and Controlers
 (commit: 592cfe6)

feat: integrar correcciones de servicios, DTOs y colecciones API
 (commit: 644c0c3)

remove: not used classes
 (commit: 98b7c37)

fix: some problems with tests, controlles and services
 (commit: 2f218e2)