feat(ui): expose worktree overview client methods

Add GetWorktreesOverviewAsync, SetWorktreeStateAsync, ForceRemoveWorktreeAsync wrappers; update CleanupFinishedWorktreesAsync to accept optional listId; append WorktreeOverviewDto and ForceRemoveResultDto records.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/ClaudeDo.Ui/Services/WorkerClient.cs

@@ -395,11 +395,11 @@ public partial class WorkerClient : ObservableObject, IAsyncDisposable, IWorkerC
         await _hub.InvokeAsync("SetTaskStatus", taskId, status.ToString());
     }
 
-    public async Task<WorktreeCleanupDto?> CleanupFinishedWorktreesAsync()
+    public async Task<WorktreeCleanupDto?> CleanupFinishedWorktreesAsync(string? listId = null)
     {
         try
         {
-            return await _hub.InvokeAsync<WorktreeCleanupDto>("CleanupFinishedWorktrees");
+            return await _hub.InvokeAsync<WorktreeCleanupDto>("CleanupFinishedWorktrees", listId);
         }
         catch
         {
@@ -419,6 +419,43 @@ public partial class WorkerClient : ObservableObject, IAsyncDisposable, IWorkerC
         }
     }
 
+    public async Task<List<WorktreeOverviewDto>> GetWorktreesOverviewAsync(string? listId)
+    {
+        try
+        {
+            var rows = await _hub.InvokeAsync<List<WorktreeOverviewDto>>("GetWorktreesOverview", listId);
+            return rows ?? new List<WorktreeOverviewDto>();
+        }
+        catch
+        {
+            return new List<WorktreeOverviewDto>();
+        }
+    }
+
+    public async Task<bool> SetWorktreeStateAsync(string taskId, WorktreeState newState)
+    {
+        try
+        {
+            return await _hub.InvokeAsync<bool>("SetWorktreeState", taskId, newState);
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    public async Task<ForceRemoveResultDto?> ForceRemoveWorktreeAsync(string taskId)
+    {
+        try
+        {
+            return await _hub.InvokeAsync<ForceRemoveResultDto>("ForceRemoveWorktree", taskId);
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
     public async Task<PlanningSessionStartInfo> StartPlanningSessionAsync(string taskId, CancellationToken ct = default)
         => await _hub.InvokeAsync<PlanningSessionStartInfo>("StartPlanningSessionAsync", taskId, ct);
 
@@ -523,3 +560,18 @@ public sealed record UpdateListConfigDto(string ListId, string? Model, string? S
 public sealed record UpdateTaskAgentSettingsDto(string TaskId, string? Model, string? SystemPrompt, string? AgentPath);
 public sealed record ListConfigDto(string? Model, string? SystemPrompt, string? AgentPath);
 public sealed record SeedResultDto(int Copied, int Skipped);
+
+public sealed record WorktreeOverviewDto(
+    string TaskId,
+    string TaskTitle,
+    ClaudeDo.Data.Models.TaskStatus TaskStatus,
+    string ListId,
+    string ListName,
+    string Path,
+    string BranchName,
+    WorktreeState State,
+    string? DiffStat,
+    DateTime CreatedAt,
+    bool PathExistsOnDisk);
+
+public sealed record ForceRemoveResultDto(bool Removed, string? Reason);