feat(rendering): journal static scene projections

Append exact static and EnvCell-shell projection deltas only at committed spatial activation and detach receipts. Same-landblock rehydrate now reconciles retained, new, and omitted presentation identities without constructing or drawing the shadow scene in production.

Co-authored-by: Erik Nilsson <erikn@users.noreply.github.com>

src/AcDream.App/Rendering/Scene/CurrentRenderSceneOracle.cs

@@ -701,6 +701,15 @@ internal sealed class CurrentRenderSceneOracle :
         };
     }
 
+    internal static CurrentRenderProjectionFingerprint
+        CreateProjectionFingerprint(
+            uint landblockId,
+            WorldEntity entity) =>
+        CreateFingerprint(
+            landblockId,
+            entity,
+            ProjectionClassOf(entity));
+
     private static CurrentRenderProjectionFingerprint CreateFingerprint(
         uint landblockId,
         WorldEntity entity,