using RackPeek.Domain.Resources.SystemResources; namespace RackPeek.Domain.Resources.Services.UseCases; public class AddServiceUseCase(IServiceRepository repository) { public async Task ExecuteAsync(string name) { // basic guard rails var existing = await repository.GetByNameAsync(name); if (existing != null) throw new InvalidOperationException($"Service '{name}' already exists."); var service = new Service { Name = name }; await repository.AddAsync(service); } }