feat(ui): add TokenTracker status, refresh and install to the worker client

src/ClaudeDo.Ui/Services/Interfaces/IWorkerClient.cs

@@ -207,4 +207,7 @@ public interface IWorkerClient : INotifyPropertyChanged
     Task<UsageSnapshotDto?> RefreshUsageAsync();
     Task<IReadOnlyList<ModelUsageRowDto>> GetModelUsageAsync(DateOnly from, DateOnly to);
     Task<IReadOnlyList<TaskUsageRowDto>> GetTaskUsageAsync(DateOnly from, DateOnly to);
+    Task<TokenTrackerStatusDto?> GetTokenTrackerStatusAsync();
+    Task<TokenTrackerStatusDto?> RefreshTokenTrackerAsync();
+    Task<TokenTrackerStatusDto?> InstallTokenTrackerAsync();
 }

src/ClaudeDo.Ui/Services/WorkerClient.cs

@@ -689,6 +689,15 @@ public partial class WorkerClient : ObservableObject, IAsyncDisposable, IWorkerC
     public async Task<IReadOnlyList<TaskUsageRowDto>> GetTaskUsageAsync(DateOnly from, DateOnly to)
         => await TryInvokeAsync<List<TaskUsageRowDto>>("GetTaskUsage", from, to) ?? [];
 
+    public Task<TokenTrackerStatusDto?> GetTokenTrackerStatusAsync()
+        => TryInvokeAsync<TokenTrackerStatusDto>("GetTokenTrackerStatus");
+
+    public Task<TokenTrackerStatusDto?> RefreshTokenTrackerAsync()
+        => TryInvokeAsync<TokenTrackerStatusDto>("RefreshTokenTracker");
+
+    public Task<TokenTrackerStatusDto?> InstallTokenTrackerAsync()
+        => TryInvokeAsync<TokenTrackerStatusDto>("InstallTokenTracker");
+
     // IWorkerClient explicit implementations (drop typed return values)
     async Task IWorkerClient.StartPlanningSessionAsync(string taskId, CancellationToken ct)
         => await StartPlanningSessionAsync(taskId, ct);
@@ -846,7 +855,8 @@ public sealed record ModelUsageRowDto(
     long OutputTokens,
     long CacheReadTokens,
     long CacheCreationTokens,
-    int Messages);
+    int Messages,
+    double? CostUsd = null);
 
 public sealed record TaskUsageRowDto(
     string TaskId,
@@ -856,4 +866,18 @@ public sealed record TaskUsageRowDto(
     string? Model,
     int Runs,
     long TokensIn,
-    long TokensOut);
+    long TokensOut,
+    double? CostUsd = null,
+    int? Retries = null,
+    bool? Productive = null,
+    bool? OneShot = null);
+
+public sealed record TokenTrackerStatusDto(
+    bool Installed,
+    string? Version,
+    bool NodeOk,
+    string? NodeVersion,
+    DateTime? LastFetchedUtc,
+    string? LastError,
+    int? FormatVersion,
+    int SessionCount);