fix(rendering): synchronize hidden live projections

Inbound state continues while portal reveal blocks ordinary world simulation. Synchronize only the derived render projection after those hidden-frame network and command phases so the first revealed draw cannot observe a stale live transform, without advancing effects, particles, attachments, or lights.

tests/AcDream.App.Tests/World/RecallTeleportAnimationTests.cs

@@ -57,6 +57,31 @@ public sealed class RecallTeleportAnimationTests
         Assert.Equal(["network", "commands"], calls);
     }
 
+    [Fact]
+    public void LiveFrame_WhileCellsAreBlocked_SynchronizesOnlyRenderProjection()
+    {
+        var calls = new List<string>();
+        var availability = new WorldGenerationAvailabilityState();
+        availability.Begin(1);
+        var frame = new RetailLiveFrameCoordinator(
+            new TestLiveObjectFramePhase(_ => calls.Add("objects")),
+            new GpuWorldState(availability: availability),
+            new TestLiveSessionFramePhase(() => calls.Add("network")),
+            new TestPostNetworkCommandFramePhase(
+                () => calls.Add("commands")),
+            new TestLiveSpatialReconcilePhase(
+                () => calls.Add("spatial")),
+            availability,
+            new TestRenderProjectionSyncPhase(
+                () => calls.Add("render-projection")));
+
+        frame.Tick(1f / 60f);
+
+        Assert.Equal(
+            ["network", "commands", "render-projection"],
+            calls);
+    }
+
     [Fact]
     public void LiveFrame_InvalidHostDeltaCannotBlockNetworkDispatch()
     {