refactor(runtime): extract the live object frame

docs/plans/2026-07-21-gamewindow-slice-6-update-frame-orchestration.md

@@ -15,7 +15,7 @@ never hidden behind a retry, delay, suppression flag, or reordered callback.
 
 - [x] A — freeze the complete production phase graph and introduce the typed
   orchestration contract plus structural/order guards.
-- [ ] B — extract the pre-network live-object presentation phase and the
+- [x] B — extract the pre-network live-object presentation phase and the
   non-advancing post-network spatial reconciler; remove callbacks into
   `GameWindow` from `RetailLiveFrameCoordinator`.
 - [ ] C — extract streaming-origin convergence, observer selection, dungeon
@@ -42,6 +42,14 @@ oracle, exact teardown and invalid-delta tests, and guards against a transitive
 18 focused Release tests and the full 2,709-test App project pass, and all
 three corrected-diff reviews are clean.
 
+Checkpoint B moved the complete local/ordinary/static/effect body into
+`LiveObjectFrameController`, made `RetailLiveFrameCoordinator`'s
+object → inbound batch → command → spatial-reconcile barrier fully typed,
+and removed animation/runtime/projectile back-references to `GameWindow`.
+`GameWindow.cs` is now 8,716 raw lines. The corrected diff passes 239 focused
+Release tests, the 2,732-test App suite, and the full 7,090-test Release suite
+(5 fixture/environment skips); all three independent reviews are clean.
+
 ## 1. Outcome and non-goals
 
 At slice exit, `GameWindow.OnUpdate` starts the profiler scope and delegates one
@@ -352,6 +360,13 @@ multiple ordinary/static owners, invalid delta, and reentrant inbound work;
 the one published PES clock remains visible from hook capture through the
 script tick.
 
+Checkpoint B removes the coordinator, animation presenter/scheduler, runtime
+view, static-root, and projectile callbacks into `GameWindow`. The callback
+composition still retained by `RetailLocalPlayerFrameController` is explicitly
+deferred: checkpoint D owns its input/capture sources and checkpoint F owns its
+mutable player-mode/controller/session sources. A structural test permits that
+one named legacy owner only; D/F must remove the exception before final cutover.
+
 ### C — streaming frame
 
 - extract readiness/recenter advancement, observer selection, dungeon gate,