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,