feat(rendering): compare the incremental shadow scene

Construct Slice F's non-drawing scene only for lifecycle automation, drain accepted static and live deltas at the final update boundary, and compare exact current-path fingerprints at cadence and checkpoints. Publish bounded mismatch, journal, index, digest, and memory evidence without changing normal launches or draw submission.

Release: 8,211 passed, 5 skipped.

tests/AcDream.App.Tests/Net/LiveSessionHostTests.cs

@@ -269,6 +269,7 @@ public sealed class LiveSessionHostTests
             InboundEventFifo = noop,
             LiveLiveness = noop,
             LiveRuntime = noop,
+            RenderSceneProjection = noop,
             SessionIdentity = noop,
             RemoteTeleport = noop,
             NetworkEffects = noop,

tests/AcDream.App.Tests/Net/LiveSessionResetPlanTests.cs

@@ -298,6 +298,7 @@ public sealed class LiveSessionResetPlanTests
             LiveRuntime = Stage(
                 "live runtime",
                 () => LiveSessionEntityRuntimeReset.ClearAndRequireConvergence(live)),
+            RenderSceneProjection = Stage("render scene projection"),
             SessionIdentity = Stage("session identity", () =>
             {
                 LiveSessionEntityRuntimeReset.RequireConvergence(live);
@@ -378,6 +379,7 @@ public sealed class LiveSessionResetPlanTests
         "inbound event fifo",
         "live liveness",
         "live runtime",
+        "render scene projection",
         "session identity",
         "remote teleport",
         "network effects",