fix(planning): return to the list base branch after integration cleanup, not a guessed task branch

src/ClaudeDo.Worker/Runner/WorktreeManager.cs

@@ -243,9 +243,6 @@ public sealed class WorktreeManager
         _logger.LogInformation("Discarded worktree for task {TaskId} (branch {Branch})", wt.TaskId, wt.BranchName);
     }
 
-    // Improvement children (parent is a non-planning task with its own worktree) branch
-    // from the parent's recorded HEAD so they build on the parent's not-yet-merged work.
-    // Planning children and standalone tasks base off the list's current HEAD.
     /// <summary>Ticket-Id des Tasks, sonst die seines Parents (Children erben das Ticket ihrer Unit).</summary>
     private async Task<int?> ResolveTicketIdAsync(TaskEntity task, CancellationToken ct)
     {
@@ -259,6 +256,9 @@ public sealed class WorktreeManager
         return TicketStatusMap.ParseBandelTicketId(parentRef);
     }
 
+    // Improvement children (parent is a non-planning task with its own worktree) branch
+    // from the parent's recorded HEAD so they build on the parent's not-yet-merged work.
+    // Planning children and standalone tasks base off list_config.base_branch, else the current HEAD.
     private async Task<string> ResolveBaseCommitAsync(TaskEntity task, string workingDir, CancellationToken ct)
     {
         if (task.ParentTaskId is not null)