Implement Domain Events as first-class citizens in domain model

[wallanpsantos]

Título: Adicionar Domain Events como first-class citizens
Labels: enhancement, architecture, clean-architecture
Descrição:
Eventos devem ser parte integral do modelo de domínio.

Solução Proposta:

// CORE - Aggregate Root base
public abstract class AggregateRoot {
    private final List<DomainEvent> domainEvents = new ArrayList<>();
    
    protected void raiseEvent(DomainEvent event) {
        domainEvents.add(event);
    }
    
    public List<DomainEvent> getUncommittedEvents() {
        return new ArrayList<>(domainEvents);
    }
}

Tarefas:

• Criar AggregateRoot base class
• Fazer Wallet estender AggregateRoot
• Criar eventos específicos (WalletCreated, MoneyDeposited, etc.)
• Implementar Event Store pattern
• Criar Domain Event Handlers