Render graph: native pass merging & heap-based aliasing

Major architecture upgrade:
- Add native render pass merging (hardware pass grouping, load/store op inference)
- Implement heap-based aliasing for textures & buffers (D3D12-style)
- Unify resource model: buffers and textures in one registry
- Extend builder API for buffer creation/usage, access flags, hints
- Improve barrier/state tracking (buffer hints, indirect argument state)
- Update caching, hashing, and debug output for new model
- Add enums/structs: AttachmentLoadOp, StoreOp, BufferHint, etc.
- D3D12 backend: support named resources, temp upload buffers, correct heap usage
- Update docs, benchmarks, and project files for new features

Brings render graph closer to AAA engine standards, enabling efficient memory usage, lower driver overhead, and a more flexible API.

Ghost.Graphics.Test/Windows/GraphicsTestWindow.xaml.cs

@@ -71,9 +71,7 @@ public sealed partial class GraphicsTestWindow : Window
         _swapChain?.Dispose();
         _renderSystem?.Dispose();
 
-#if DEBUG
         Misaki.HighPerformance.LowLevel.Buffer.AllocationManager.Dispose();
-#endif
     }
 
     private void SwapChainPanel_SizeChanged(object sender, SizeChangedEventArgs e)
@@ -110,10 +108,7 @@ public sealed partial class GraphicsTestWindow : Window
 
         if (_renderSystem.CPUFenceValue < _renderSystem.GPUFenceValue + _renderSystem.MaxFrameLatency)
         {
-            DispatcherQueue.TryEnqueue(Microsoft.UI.Dispatching.DispatcherQueuePriority.High, () =>
-            {
-                _renderSystem.SignalCPUReady();
-            });
+            _renderSystem.SignalCPUReady();
         }
     }
 }