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/RenderPasses/MeshRenderPass.cs

@@ -157,7 +157,7 @@ internal class MeshRenderPass : IRenderPass
                 Usage = TextureUsage.ShaderResource,
             };
 
-            _textures[i] = ctx.CreateTexture(in desc, imageData.AsSpan());
+            _textures[i] = ctx.CreateTexture(in desc, imageData.AsSpan(), $"Texture_{i}");
         }
 
         var samplerDesc = new SamplerDesc
@@ -182,13 +182,9 @@ internal class MeshRenderPass : IRenderPass
             tex_sampler = (uint)sampler.Value,
         };
 
-        Debug.Assert(matRef.SetPropertyCache(in matProps) == ErrorStatus.None);
+        matRef.SetPropertyCache(in matProps).ThrowIfFailed();
         matRef.UploadData(ctx.DirectCommandBuffer);
 
-        var pso = matRef.GetPassPipelineOverride(0);
-        pso.Cull = Cull.Back;
-        matRef.SetPassPipelineOverride(0, in pso);
-
         _forwardPassID = Shader.GetPassID("Forward");
     }