feat: migrate legacy playout workflow and scenes

tests/MBN_STOCK_WEBVIEW.Playout.Tests/PlayoutFakes.cs

@@ -53,6 +53,16 @@ internal sealed class FakeK3dSession : IK3dGuardedConnectSession
 
     public PlayoutKtapConnectState LastKtapConnectState { get; private set; }
 
+    public bool SupportsLifecycleCallbacks { get; set; }
+
+    public bool? KtapHelloObserved { get; set; }
+
+    public bool HasPendingLifecycleCallbacks { get; set; }
+
+    public bool HasPendingPlayCallbacks { get; set; }
+
+    public bool ClearPendingLifecycleCallbacksAfterProcess { get; set; } = true;
+
     public ConcurrentQueue<string> Calls { get; } = new();
 
     public ConcurrentQueue<int> ThreadIds { get; } = new();
@@ -69,10 +79,14 @@ internal sealed class FakeK3dSession : IK3dGuardedConnectSession
 
     public Action<PlayoutCue, int>? PrepareAction { get; set; }
 
+    public Action<PlayoutCue, int>? UpdateOnAirAction { get; set; }
+
     public Action<int>? PlayAction { get; set; }
 
     public Action<int, PlayoutTakeOutScope>? TakeOutAction { get; set; }
 
+    public Func<int, K3dCallbackDrainResult>? ProcessPendingCallbacksAction { get; set; }
+
     public Action? AbandonAction { get; set; }
 
     public Action<string>? CallObserver { get; set; }
@@ -155,6 +169,12 @@ internal sealed class FakeK3dSession : IK3dGuardedConnectSession
         PrepareAction?.Invoke(cue, layoutIndex);
     }
 
+    public void UpdateOnAir(PlayoutCue cue, int layoutIndex)
+    {
+        Record($"UpdateOnAir:{cue.SceneName}");
+        UpdateOnAirAction?.Invoke(cue, layoutIndex);
+    }
+
     public void Play(int layoutIndex)
     {
         Record("Play");
@@ -167,6 +187,20 @@ internal sealed class FakeK3dSession : IK3dGuardedConnectSession
         TakeOutAction?.Invoke(layoutIndex, scope);
     }
 
+    public K3dCallbackDrainResult ProcessPendingCallbacks(int layoutIndex)
+    {
+        Record("ProcessPendingCallbacks");
+        var result = ProcessPendingCallbacksAction?.Invoke(layoutIndex)
+            ?? new K3dCallbackDrainResult(0, 0, KtapHelloObserved == true);
+        if (ClearPendingLifecycleCallbacksAfterProcess)
+        {
+            HasPendingLifecycleCallbacks = false;
+            HasPendingPlayCallbacks = false;
+        }
+
+        return result;
+    }
+
     public void Abandon()
     {
         TryPreventKtapConnect();
@@ -268,7 +302,7 @@ internal sealed class FakeLiveAuthorization : ILiveAuthorization
         IsAuthorizedForThisLaunch = isAuthorizedForThisLaunch;
     }
 
-    public bool IsAuthorizedForThisLaunch { get; }
+    public bool IsAuthorizedForThisLaunch { get; set; }
 }
 
 internal sealed class TrackingStaDispatcherFactory : IStaDispatcherFactory