feat(data): add Planning, Planned, Draft task statuses

src/ClaudeDo.Data/Configuration/TaskEntityConfiguration.cs

@@ -14,6 +14,9 @@ public class TaskEntityConfiguration : IEntityTypeConfiguration<TaskEntity>
          : v == TaskStatus.Running ? "running"
          : v == TaskStatus.Done ? "done"
          : v == TaskStatus.Failed ? "failed"
+         : v == TaskStatus.Planning ? "planning"
+         : v == TaskStatus.Planned ? "planned"
+         : v == TaskStatus.Draft ? "draft"
          : throw new ArgumentOutOfRangeException(nameof(v));
 
     private static TaskStatus StatusFromString(string v)
@@ -22,6 +25,9 @@ public class TaskEntityConfiguration : IEntityTypeConfiguration<TaskEntity>
          : v == "running" ? TaskStatus.Running
          : v == "done" ? TaskStatus.Done
          : v == "failed" ? TaskStatus.Failed
+         : v == "planning" ? TaskStatus.Planning
+         : v == "planned" ? TaskStatus.Planned
+         : v == "draft" ? TaskStatus.Draft
          : throw new ArgumentOutOfRangeException(nameof(v));
 
     private static readonly ValueConverter<TaskStatus, string> StatusConverter =

src/ClaudeDo.Data/Models/TaskEntity.cs

@@ -7,6 +7,9 @@ public enum TaskStatus
     Running,
     Done,
     Failed,
+    Planning,
+    Planned,
+    Draft,
 }
 
 public sealed class TaskEntity