fix(test): give Ui.Tests task seeds a unique Number

The task-numbers slice added a UNIQUE index on tasks.number. Ui.Tests seed
TaskEntity rows directly instead of going through TaskRepository, so every row
kept the default Number = 0 and 31 tests failed with
'UNIQUE constraint failed: tasks.number'.

tests/ClaudeDo.Ui.Tests/TestTaskNumbers.cs

@@ -0,0 +1,13 @@
+namespace ClaudeDo.Ui.Tests;
+
+/// <summary>
+/// Tests seed <see cref="ClaudeDo.Data.Models.TaskEntity"/> rows directly instead of going through
+/// TaskRepository, so nothing allocates their Number — and every row would default to 0, colliding
+/// on the unique index. Hand out a process-wide unique number instead.
+/// </summary>
+internal static class TestTaskNumbers
+{
+    private static int _next;
+
+    public static int Next() => Interlocked.Increment(ref _next);
+}

tests/ClaudeDo.Ui.Tests/ViewModels/DetailsIslandHandlerRangeTests.cs

@@ -81,6 +81,7 @@ public class DetailsIslandHandlerRangeTests : IDisposable
             ctx.Lists.Add(new ListEntity { Id = listId, Name = "L", WorkingDir = @"C:\repo", CreatedAt = DateTime.UtcNow });
             ctx.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = taskId, ListId = listId, Title = "List handler: L",
                 Status = TaskStatus.WaitingForReview, IsManual = true,
                 HandlerBaseCommit = "base123", HandlerHeadCommit = "head456",

tests/ClaudeDo.Ui.Tests/ViewModels/DetailsIslandPlanningTests.cs

@@ -108,12 +108,14 @@ public class DetailsIslandPlanningTests : IDisposable
             ctx.Lists.Add(new ListEntity { Id = listId, Name = "L", CreatedAt = DateTime.UtcNow });
             ctx.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = parentId, ListId = listId, Title = "Parent",
                 Status = TaskStatus.Idle, PlanningPhase = PlanningPhase.Active,
                 CreatedAt = DateTime.UtcNow,
             });
             ctx.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = childId, ListId = listId, Title = "Child",
                 Status = TaskStatus.Done, ParentTaskId = parentId, CreatedAt = DateTime.UtcNow,
             });

tests/ClaudeDo.Ui.Tests/ViewModels/DetailsIslandTaskUpdatedTests.cs

@@ -69,6 +69,7 @@ public class DetailsIslandTaskUpdatedTests : IDisposable
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = id, ListId = "L1", Title = "Task", Status = status, CreatedAt = DateTime.UtcNow,
         });
         await db.SaveChangesAsync();

tests/ClaudeDo.Ui.Tests/ViewModels/MergeHelperSelectionModalViewModelTests.cs

@@ -53,6 +53,7 @@ public class MergeHelperSelectionModalViewModelTests : IDisposable
         void Add(string id, string listId, TaskStatus status) =>
             db.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = id, ListId = listId, Title = $"task {id}",
                 Status = status, CreatedAt = DateTime.UtcNow, SortOrder = order++,
             });
@@ -105,6 +106,7 @@ public class MergeHelperSelectionModalViewModelTests : IDisposable
         {
             db.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = "t-new", ListId = "L1", Title = "arrived later",
                 Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 99,
             });
@@ -127,16 +129,19 @@ public class MergeHelperSelectionModalViewModelTests : IDisposable
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
             db.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = "parent", ListId = "L1", Title = "parent",
                 Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0,
             });
             db.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = "child1", ListId = "L1", Title = "child1", ParentTaskId = "parent",
                 Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 1,
             });
             db.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = "child2", ListId = "L1", Title = "child2", ParentTaskId = "parent",
                 Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 2,
             });
@@ -235,9 +240,9 @@ public class MergeHelperSelectionModalViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "parent", ListId = "L1", Title = "parent", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "parent", ListId = "L1", Title = "parent", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
-            db.Tasks.Add(new TaskEntity { Id = "sibling", ListId = "L1", Title = "sibling", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 1 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "sibling", ListId = "L1", Title = "sibling", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 1 });
-            db.Tasks.Add(new TaskEntity { Id = "child", ListId = "L1", Title = "child", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 2, ParentTaskId = "parent" });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "child", ListId = "L1", Title = "child", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 2, ParentTaskId = "parent" });
             await db.SaveChangesAsync();
         }
 
@@ -258,8 +263,8 @@ public class MergeHelperSelectionModalViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "parent-done", ListId = "L1", Title = "parent", Status = TaskStatus.Done, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "parent-done", ListId = "L1", Title = "parent", Status = TaskStatus.Done, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
-            db.Tasks.Add(new TaskEntity { Id = "child", ListId = "L1", Title = "child", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 1, ParentTaskId = "parent-done" });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "child", ListId = "L1", Title = "child", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 1, ParentTaskId = "parent-done" });
             await db.SaveChangesAsync();
         }
 
@@ -282,9 +287,9 @@ public class MergeHelperSelectionModalViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "parent", ListId = "L1", Title = "parent", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "parent", ListId = "L1", Title = "parent", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
-            db.Tasks.Add(new TaskEntity { Id = "child1", ListId = "L1", Title = "child1", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 1, ParentTaskId = "parent" });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "child1", ListId = "L1", Title = "child1", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 1, ParentTaskId = "parent" });
-            db.Tasks.Add(new TaskEntity { Id = "child2", ListId = "L1", Title = "child2", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 2, ParentTaskId = "parent" });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "child2", ListId = "L1", Title = "child2", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 2, ParentTaskId = "parent" });
             await db.SaveChangesAsync();
         }
 
@@ -314,8 +319,8 @@ public class MergeHelperSelectionModalViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "parent", ListId = "L1", Title = "parent", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "parent", ListId = "L1", Title = "parent", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
-            db.Tasks.Add(new TaskEntity { Id = "child", ListId = "L1", Title = "child", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 1, ParentTaskId = "parent" });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "child", ListId = "L1", Title = "child", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 1, ParentTaskId = "parent" });
             await db.SaveChangesAsync();
         }
 
@@ -334,7 +339,7 @@ public class MergeHelperSelectionModalViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "t-done", ListId = "L1", Title = "done", Status = TaskStatus.Done, CreatedAt = DateTime.UtcNow });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "t-done", ListId = "L1", Title = "done", Status = TaskStatus.Done, CreatedAt = DateTime.UtcNow });
             await db.SaveChangesAsync();
         }
 

tests/ClaudeDo.Ui.Tests/ViewModels/MissionControlViewModelTests.cs

@@ -113,8 +113,8 @@ public class MissionControlViewModelTests : IDisposable
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
             // Running task has higher SortOrder — must still appear first
-            db.Tasks.Add(new TaskEntity { Id = "r1", ListId = "L1", Title = "running-task", Status = TaskStatus.Running, CreatedAt = DateTime.UtcNow, SortOrder = 10 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "r1", ListId = "L1", Title = "running-task", Status = TaskStatus.Running, CreatedAt = DateTime.UtcNow, SortOrder = 10 });
-            db.Tasks.Add(new TaskEntity { Id = "q1", ListId = "L1", Title = "queued-task", Status = TaskStatus.Queued, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "q1", ListId = "L1", Title = "queued-task", Status = TaskStatus.Queued, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
             await db.SaveChangesAsync();
         }
 
@@ -139,7 +139,7 @@ public class MissionControlViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "r1", ListId = "L1", Title = "running", Status = TaskStatus.Running, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "r1", ListId = "L1", Title = "running", Status = TaskStatus.Running, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
             await db.SaveChangesAsync();
         }
 
@@ -159,7 +159,7 @@ public class MissionControlViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "q1", ListId = "L1", Title = "clickable", Status = TaskStatus.Queued, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "q1", ListId = "L1", Title = "clickable", Status = TaskStatus.Queued, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
             await db.SaveChangesAsync();
         }
 
@@ -180,7 +180,7 @@ public class MissionControlViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "r1", ListId = "L1", Title = "running", Status = TaskStatus.Running, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "r1", ListId = "L1", Title = "running", Status = TaskStatus.Running, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
             await db.SaveChangesAsync();
         }
 
@@ -212,9 +212,9 @@ public class MissionControlViewModelTests : IDisposable
     {
         await using var db = NewContext();
         db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-        db.Tasks.Add(new TaskEntity { Id = "q2", ListId = "L1", Title = "second", Status = TaskStatus.Queued, CreatedAt = DateTime.UtcNow, SortOrder = 1 });
+        db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "q2", ListId = "L1", Title = "second", Status = TaskStatus.Queued, CreatedAt = DateTime.UtcNow, SortOrder = 1 });
-        db.Tasks.Add(new TaskEntity { Id = "q1", ListId = "L1", Title = "first", Status = TaskStatus.Queued, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+        db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "q1", ListId = "L1", Title = "first", Status = TaskStatus.Queued, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
-        db.Tasks.Add(new TaskEntity { Id = "idle1", ListId = "L1", Title = "idle", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 2 });
+        db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "idle1", ListId = "L1", Title = "idle", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 2 });
         await db.SaveChangesAsync();
     }
 
@@ -246,7 +246,7 @@ public class MissionControlViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "idleTask", ListId = "L1", Title = "Do the thing", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "idleTask", ListId = "L1", Title = "Do the thing", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
             await db.SaveChangesAsync();
         }
 
@@ -270,7 +270,7 @@ public class MissionControlViewModelTests : IDisposable
         await using (var db = NewContext())
         {
             db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
-            db.Tasks.Add(new TaskEntity { Id = "t1", ListId = "L1", Title = "Do the thing", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
+            db.Tasks.Add(new TaskEntity { Number = TestTaskNumbers.Next(), Id = "t1", ListId = "L1", Title = "Do the thing", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0 });
             await db.SaveChangesAsync();
         }
 

tests/ClaudeDo.Ui.Tests/ViewModels/TasksIslandDeltaResilienceTests.cs

@@ -90,6 +90,7 @@ public class TasksIslandDeltaResilienceTests : IDisposable
         db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = "T1", ListId = "L1", Title = "Task one",
             Status = TaskStatus.Queued, CreatedAt = DateTime.UtcNow, SortOrder = 0,
         });

tests/ClaudeDo.Ui.Tests/ViewModels/TasksIslandFullReloadSelectionTests.cs

@@ -53,12 +53,14 @@ public class TasksIslandFullReloadSelectionTests : IDisposable
         db.Lists.Add(new ListEntity { Id = "L1", Name = "Work", CreatedAt = DateTime.UtcNow });
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = "P1", ListId = "L1", Title = "Parent",
             Status = TaskStatus.WaitingForChildren, PlanningPhase = PlanningPhase.Finalized,
             CreatedAt = DateTime.UtcNow, SortOrder = 0,
         });
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = "C1", ListId = "L1", ParentTaskId = "P1", Title = "Child",
             Status = TaskStatus.Running, CreatedAt = DateTime.UtcNow, SortOrder = 1,
         });

tests/ClaudeDo.Ui.Tests/ViewModels/TasksIslandListSwitchSelectionTests.cs

@@ -48,11 +48,13 @@ public class TasksIslandListSwitchSelectionTests : IDisposable
         db.Lists.Add(new ListEntity { Id = "L2", Name = "Home", CreatedAt = DateTime.UtcNow });
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = "T1", ListId = "L1", Title = "Task one",
             Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0,
         });
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = "T2", ListId = "L2", Title = "Task two",
             Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow, SortOrder = 0,
         });

tests/ClaudeDo.Ui.Tests/ViewModels/TasksIslandMoveToListTests.cs

@@ -86,6 +86,7 @@ public class TasksIslandMoveToListTests : IDisposable
         await using var db = NewContext();
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = id, ListId = listId, Title = id, CreatedAt = DateTime.UtcNow,
             Status = status, ParentTaskId = parentTaskId, SortOrder = 0,
         });

tests/ClaudeDo.Ui.Tests/ViewModels/TasksIslandReconcileTickTests.cs

@@ -75,6 +75,7 @@ public class TasksIslandReconcileTickTests : IDisposable
         await using var db = NewContext();
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = id, ListId = "L1", Title = title,
             Status = status, CreatedAt = DateTime.UtcNow, SortOrder = sortOrder,
         });

tests/ClaudeDo.Ui.Tests/ViewModels/TasksIslandRegroupTests.cs

@@ -64,6 +64,7 @@ public class TasksIslandRegroupTests : IDisposable
 
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = parentId,
             ListId = list.Id,
             Title = "Parent",
@@ -74,6 +75,7 @@ public class TasksIslandRegroupTests : IDisposable
         });
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = childId,
             ListId = list.Id,
             Title = "Child",
@@ -116,6 +118,7 @@ public class TasksIslandRegroupTests : IDisposable
         {
             db.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = t.Id,
                 ListId = "list1",
                 Title = t.Id,

tests/ClaudeDo.Ui.Tests/ViewModels/TasksIslandRemoveFromQueueTests.cs

@@ -56,6 +56,7 @@ public class TasksIslandRemoveFromQueueTests : IDisposable
         });
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = parentId,
             ListId = "list1",
             Title = "Parent",
@@ -69,6 +70,7 @@ public class TasksIslandRemoveFromQueueTests : IDisposable
             var c = children[i];
             db.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = c.Id,
                 ListId = "list1",
                 Title = $"Child {i}",
@@ -143,6 +145,7 @@ public class TasksIslandRemoveFromQueueTests : IDisposable
             });
             db.Tasks.Add(new TaskEntity
             {
+                Number = TestTaskNumbers.Next(),
                 Id = "solo",
                 ListId = "list1",
                 Title = "Solo",

tests/ClaudeDo.Ui.Tests/ViewModels/TasksIslandSelectByIdTests.cs

@@ -50,6 +50,7 @@ public class TasksIslandSelectByIdTests : IDisposable
         });
         db.Tasks.Add(new TaskEntity
         {
+            Number = TestTaskNumbers.Next(),
             Id = "T1",
             ListId = "L1",
             Title = "My task",