namespace ClaudeDo.Worker.Planning; public interface IPlanningTerminalLauncher { Task LaunchStartAsync(PlanningSessionStartContext ctx, CancellationToken cancellationToken); Task LaunchResumeAsync(PlanningSessionResumeContext ctx, CancellationToken cancellationToken); } public sealed class PlanningLaunchException : Exception { public PlanningLaunchException(string message) : base(message) { } }