refactor(render): extract frame resource preparation

Move ordered resource begin, clear/state setup, live upload/reveal, weather timing, and display pacing behind focused owners while preserving the accepted frame order and retryable shutdown ownership.

Co-authored-by: Codex <codex@openai.com>

docs/plans/2026-07-22-gamewindow-slice-7-render-frame-orchestration.md

@@ -377,6 +377,20 @@ corrected-diff reviews are clean.
 - prove `WbMeshAdapter.Tick` remains before reveal evaluation and drawing;
 - prove dispatcher begin occurs once for the whole world/paperdoll frame.
 
+Completed 2026-07-22. `RenderFrameResourceController` now owns the exact
+resource-begin → atmosphere/GL-clear → live-upload/reveal/particle transaction,
+with a single captured GPU slot shared by every phase. Focused sources own the
+login reveal cell, teleport render state, upload timing, and render-time weather
+clock. `DisplayFramePacingController` owns requested VSync, the event-refreshed
+monitor-rate cache, software pacing, and the post-render callback without adding
+a monitor query to the frame hot path. Borrowed frame owners are withdrawn before
+render teardown; portal fallback ownership transfers before the throwable sink
+bind; pacing releases its borrowed surface/profiler before their owners close.
+`GameWindow.cs` is 6,181 raw lines, 60.7% below the 15,723-line campaign
+baseline. Twenty-one focused tests, the Release build, and the complete suite
+pass (7,269 passed / 5 skipped). Retail, architecture, and adversarial
+corrected-diff reviews are clean.
+
 ### D — world frame builder
 
 - move animated/equipped classification, camera/root selection, outdoor-node