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.RHI/IRenderDevice.cs

@@ -21,7 +21,7 @@ public interface IRenderDevice : IDisposable
     /// <summary>
     /// Graphics command queue for rendering operations
     /// </summary>
-    public ICommandQueue GraphicsQueue
+    ICommandQueue GraphicsQueue
     {
         get;
     }
@@ -29,7 +29,7 @@ public interface IRenderDevice : IDisposable
     /// <summary>
     /// Compute command queue for compute shader operations
     /// </summary>
-    public ICommandQueue ComputeQueue
+    ICommandQueue ComputeQueue
     {
         get;
     }
@@ -37,12 +37,12 @@ public interface IRenderDevice : IDisposable
     /// <summary>
     /// Copy command queue for data transfer operations
     /// </summary>
-    public ICommandQueue CopyQueue
+    ICommandQueue CopyQueue
     {
         get;
     }
 
-    public FeatureSupport FeatureSupport
+    FeatureSupport FeatureSupport
     {
         get;
     }