Refactor render graph error handling and resource APIs

- RenderGraph.Compile/Execute now return Error for better failure detection; error handling is propagated throughout compiler and executor.
- Renamed ScheduleReleaseResource to ReleaseResource for clarity; updated all usages.
- ResourceManager now calls ReleaseResource directly on Mesh, Material, and Shader types.
- Camera exposes Actual/Virtual size properties and Render returns Error.
- RenderingContext now uses IResourceManager for mesh/resource ops.
- Replaced custom BinaryWriter with BufferWriter in RenderGraphHasher.
- Improved variable naming, interface signatures, and code formatting.
- Added Error extension for IsSuccess/IsFailure.
- Minor FMOD/native interop and test code cleanups.
- No breaking API changes except for new Error return values on some methods.

src/Runtime/Ghost.Graphics.D3D12/D3D12ResourceDatabase.cs

@@ -1,7 +1,6 @@
 using Ghost.Core;
 using Ghost.Graphics.D3D12.Utilities;
 using Ghost.Graphics.RHI;
-using Misaki.HighPerformance.Collections;
 using Misaki.HighPerformance.LowLevel;
 using Misaki.HighPerformance.LowLevel.Buffer;
 using Misaki.HighPerformance.LowLevel.Collections;
@@ -279,7 +278,7 @@ internal class D3D12ResourceDatabase : IResourceDatabase
         return null;
     }
 
-    public void ScheduleReleaseResource(Handle<GPUResource> handle)
+    public void ReleaseResource(Handle<GPUResource> handle)
     {
         ObjectDisposedException.ThrowIf(_disposed, this);