feat: complete Nexus mission-control workflows

backend-tests/TaskWorkflowTests.cs

@@ -178,7 +178,7 @@ public sealed class TaskWorkflowTests
     {
         await using var fixture = await TaskWorkflowFixture.CreateAsync();
 
-        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration)
+        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration, fixture.ActivityRepository)
         {
             ControllerContext = new ControllerContext
             {
@@ -199,7 +199,7 @@ public sealed class TaskWorkflowTests
     {
         await using var fixture = await TaskWorkflowFixture.CreateAsync();
 
-        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration)
+        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration, fixture.ActivityRepository)
         {
             ControllerContext = new ControllerContext
             {
@@ -217,7 +217,7 @@ public sealed class TaskWorkflowTests
     {
         await using var fixture = await TaskWorkflowFixture.CreateAsync();
 
-        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration)
+        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration, fixture.ActivityRepository)
         {
             ControllerContext = new ControllerContext
             {
@@ -238,7 +238,7 @@ public sealed class TaskWorkflowTests
     {
         await using var fixture = await TaskWorkflowFixture.CreateAsync();
 
-        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration)
+        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration, fixture.ActivityRepository)
         {
             ControllerContext = new ControllerContext
             {
@@ -256,7 +256,7 @@ public sealed class TaskWorkflowTests
     {
         await using var fixture = await TaskWorkflowFixture.CreateAsync();
 
-        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration)
+        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration, fixture.ActivityRepository)
         {
             ControllerContext = new ControllerContext
             {
@@ -277,7 +277,7 @@ public sealed class TaskWorkflowTests
     {
         await using var fixture = await TaskWorkflowFixture.CreateAsync();
 
-        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration)
+        var controller = new TasksController(fixture.TaskService, fixture.AgentService, fixture.Configuration, fixture.ActivityRepository)
         {
             ControllerContext = new ControllerContext
             {
@@ -372,7 +372,7 @@ public sealed class TaskWorkflowTests
     }
 }
 
-file sealed class TaskWorkflowFixture : IAsyncDisposable
+internal sealed class TaskWorkflowFixture : IAsyncDisposable
 {
     private readonly NexusDbContext _db;
 
@@ -383,6 +383,7 @@ file sealed class TaskWorkflowFixture : IAsyncDisposable
         IActivityRepository activityRepository,
         INotificationService notificationService,
         ILiveUpdateService liveUpdateService,
+        IStaleTaskRecoveryService staleTaskRecoveryService,
         ITaskService taskService,
         ITaskBridgeService taskBridgeService,
         IAgentService agentService,
@@ -394,6 +395,7 @@ file sealed class TaskWorkflowFixture : IAsyncDisposable
         ActivityRepository = activityRepository;
         NotificationService = notificationService;
         LiveUpdateService = liveUpdateService;
+        StaleTaskRecoveryService = staleTaskRecoveryService;
         TaskService = taskService;
         TaskBridgeService = taskBridgeService;
         AgentService = agentService;
@@ -405,6 +407,7 @@ file sealed class TaskWorkflowFixture : IAsyncDisposable
     public IActivityRepository ActivityRepository { get; }
     public INotificationService NotificationService { get; }
     public ILiveUpdateService LiveUpdateService { get; }
+    public IStaleTaskRecoveryService StaleTaskRecoveryService { get; }
     public ITaskService TaskService { get; }
     public ITaskBridgeService TaskBridgeService { get; }
     public IAgentService AgentService { get; }
@@ -430,10 +433,14 @@ file sealed class TaskWorkflowFixture : IAsyncDisposable
 
         var agentService = new AgentService(configuration, new FakeRuntime());
         var liveUpdateService = new LiveUpdateService();
-        var activityRepository = new ActivityRepository(db);
+        var activityRepository = new ActivityRepository(db, liveUpdateService);
         var taskRepository = new TaskRepository(db);
         var notificationService = new NotificationService(db, liveUpdateService);
         var httpContextAccessor = new HttpContextAccessor { HttpContext = CreateHttpContext(agentId: "iris") };
+        var staleTaskRecoveryService = new StaleTaskRecoveryService(
+            taskRepository,
+            activityRepository,
+            liveUpdateService);
 
         var taskService = new TaskService(
             taskRepository,
@@ -441,7 +448,8 @@ file sealed class TaskWorkflowFixture : IAsyncDisposable
             notificationService,
             agentService,
             httpContextAccessor,
-            liveUpdateService);
+            liveUpdateService,
+            staleTaskRecoveryService);
 
         var taskBridgeService = new TaskBridgeService(
             taskService,
@@ -457,6 +465,7 @@ file sealed class TaskWorkflowFixture : IAsyncDisposable
             activityRepository,
             notificationService,
             liveUpdateService,
+            staleTaskRecoveryService,
             taskService,
             taskBridgeService,
             agentService,
@@ -539,6 +548,7 @@ file sealed class FakeDashboardService : IDashboardService
     public Task<ChatResponse> SendChatAsync(string agentId, string message) => Task.FromResult(new ChatResponse(true, "", null));
     public Task<List<MessageEntry>> GetMessagesAsync(string? sessionKey, int limit, int offset) => Task.FromResult(new List<MessageEntry>());
     public Task<List<QueueItem>> GetQueueAsync(CancellationToken ct) => Task.FromResult(new List<QueueItem>());
+    public Task<GatewayRuntimeInfo> GetGatewayInfoAsync(CancellationToken ct) => Task.FromResult(new GatewayRuntimeInfo(true, "http://gateway", "test", "test", true, true, "matched", DateTimeOffset.UtcNow, "ok"));
     public Task<QueueDeleteResult> DeleteQueueItemAsync(string id, string? source, CancellationToken ct) => Task.FromResult(new QueueDeleteResult(QueueDeleteOutcome.Ignored));
     public Task<QueuePriorityResult> CycleQueuePriorityAsync(string id, CancellationToken ct) => Task.FromResult(new QueuePriorityResult(QueuePriorityOutcome.Ignored));
     public Task<AgentModelInfo?> GetAgentModelAsync(string agentId) => Task.FromResult<AgentModelInfo?>(null);