e5d0dd5f8f
Domain: add timezone field to Event and CreateEventCommand. Ports: new GetEventUseCase inbound port. Service: implement getByEventToken, validate IANA timezone on create. Controller: map to GetEventResponse, compute expired flag via Clock. Persistence: timezone column in JPA entity and mapping. Tests: integration tests use DTOs + ObjectMapper instead of inline JSON, GET tests seed DB directly via JpaRepository for isolation. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>