Refactor error handling and improve type safety

Refactored error handling across the codebase by replacing exceptions with `Result`-based error handling for better robustness and consistency.

- Updated `ResultExtensions` to use `EqualityComparer` for comparisons.
- Enhanced `RenderingContext` with `GetValueOrThrow` for resource validation and added type constraints for texture methods.
- Introduced `CommandError` and `RecordError` in `D3D12CommandBuffer` for improved error tracking.
- Refactored `D3D12ResourceDatabase` to use `Result` objects for resource queries.
- Updated `ICommandBuffer` and `IResourceDatabase` interfaces to return `Result` objects.
- Improved type safety by replacing `int` with `uint` where appropriate.
- Simplified texture handling in `MeshRenderPass` with new `CreateTexture` logic.
- Cleaned up project files by removing unused and redundant entries.

These changes enhance code maintainability, improve error reporting, and ensure type safety throughout the project.

Ghost.Graphics/RHI/Common.cs

@@ -263,8 +263,8 @@ public struct RectDesc
 public struct SubResourceData
 {
     public unsafe void* pData;
-    public nint rowPitch;
-    public nint slicePitch;
+    public uint rowPitch;
+    public uint slicePitch;
 }
 
 public struct PassRenderTargetDesc
@@ -303,7 +303,7 @@ public struct PassDepthStencilDesc
 
 public struct BarrierDesc
 {
-    public Handle<GraphicsBuffer> Resource
+    public Handle<GPUResource> Resource
     {
         get; set;
     }
@@ -681,6 +681,24 @@ public struct BufferDesc
     }
 }
 
+public struct CommandError
+{
+    public int CommandIndex
+    {
+        get; set;
+    }
+
+    public string CommandName
+    {
+        get; set;
+    }
+
+    public ResultStatus Status
+    {
+        get; set;
+    }
+}
+
 /// <summary>
 /// Swap chain description
 /// </summary>