refactor(runtime): extract the live object frame

tests/AcDream.App.Tests/FramePhaseTestDoubles.cs

@@ -0,0 +1,27 @@
+using AcDream.App.Update;
+
+namespace AcDream.App.Tests;
+
+internal sealed class TestLiveObjectFramePhase(Action<float> tick)
+    : ILiveObjectFramePhase
+{
+    public void Tick(float deltaSeconds) => tick(deltaSeconds);
+}
+
+internal sealed class TestLiveSessionFramePhase(Action tick)
+    : ILiveSessionFramePhase
+{
+    public void Tick() => tick();
+}
+
+internal sealed class TestPostNetworkCommandFramePhase(Action run)
+    : IPostNetworkCommandFramePhase
+{
+    public void RunPostNetworkCommandPhase() => run();
+}
+
+internal sealed class TestLiveSpatialReconcilePhase(Action reconcile)
+    : ILiveSpatialReconcilePhase
+{
+    public void Reconcile() => reconcile();
+}