feat: complete task board workflow gates

backend/Controllers/DashboardController.cs

@@ -16,6 +16,8 @@ public class DashboardController(
     ITaskService taskService,
     IActivityRepository activityService,
     IHttpContextAccessor httpContextAccessor,
+    IAgentService agentService,
+    IConfiguration configuration,
     INotificationService notificationService,
     ILiveUpdateService liveUpdateService) : ControllerBase
 {
@@ -191,9 +193,15 @@ public class DashboardController(
 
     // ── Task Board Endpoints ──
 
+    [AllowAnonymous]
     [HttpGet("tasks/board")]
-    public async Task<BoardResponse> GetBoard(CancellationToken ct)
-        => await taskService.GetBoardAsync(ct);
+    public async Task<ActionResult<BoardResponse>> GetBoard(CancellationToken ct)
+    {
+        if (!await CanReadBoardAsync(ct))
+            return Unauthorized();
+
+        return Ok(await taskService.GetBoardAsync(ct));
+    }
 
     [HttpGet("live")]
     public async Task Live(
@@ -320,8 +328,17 @@ public class DashboardController(
     [HttpGet("tasks/{id:guid}/children")]
     public async Task<ActionResult<List<DashboardTaskDto>>> GetChildren(Guid id, CancellationToken ct)
     {
-        var children = await taskService.GetChildTasksAsync(id, ct);
-        return Ok(children.Select(MapToDto).ToList());
+        var board = await taskService.GetBoardAsync(ct);
+        var children = board.Offen
+            .Concat(board.InProgress)
+            .Concat(board.Review)
+            .Concat(board.Blocked)
+            .Concat(board.Done)
+            .Where(task => task.ParentTaskId == id)
+            .OrderByDescending(task => task.UpdatedAt)
+            .ToList();
+
+        return Ok(children);
     }
 
     [HttpGet("tasks/{id:guid}")]
@@ -401,7 +418,7 @@ public class DashboardController(
             var task = await taskService.CreateAgentTaskAsync(
                 request.Title, request.Detail, request.Source ?? "iris",
                 request.Priority, request.AssignedTo, request.ExpectedFrom,
-                request.ParentTaskId, ct);
+                request.ParentTaskId, request.StartsInProgress, request.InitialState, ct);
 
             return Created($"/api/dashboard/tasks/{task.Id}", MapToDto(task));
         }
@@ -415,4 +432,16 @@ public class DashboardController(
         t.Id, t.Title, t.Detail, t.Source, t.State, t.Priority, t.AssignedTo,
         t.ParentTaskId, t.DueDate, t.CreatedAt, t.UpdatedAt,
         t.IsAgentTask, t.ExpectedFrom);
+
+    private async Task<bool> CanReadBoardAsync(CancellationToken ct)
+    {
+        var allowedAgent = await RequestAuthorizationHelper.ResolveAllowedAgentHeaderAsync(HttpContext, agentService, ct);
+        if (!string.IsNullOrWhiteSpace(allowedAgent))
+            return true;
+
+        if (RequestAuthorizationHelper.HasValidServiceKey(HttpContext, configuration))
+            return true;
+
+        return User.Identity?.IsAuthenticated == true;
+    }
 }