Render extraction system & ECS/graphics refactor

Introduced RenderExtractionSystem for entity-based render data extraction. Added MeshInstance and MeshPalette components with shadow casting support. Refactored QueryBuilder API, SharedComponentStore, and component registration for clarity and flexibility. Updated SystemManager and SystemGroup to use SystemAPI. Replaced RenderingConfig with GraphicsEngineDesc/RenderSystemDesc. RenderFrame now uses CPU/GPU fence values for sync. Removed Camera.cs in favor of ECS-based rendering. Improved Material, RenderingLayerMask, Mesh, and RenderList APIs. Updated package references and fixed naming, error handling, and disposal issues.

src/Runtime/Ghost.Graphics.RHI/IRenderer.cs

@@ -7,6 +7,8 @@ public readonly struct RenderContext
     public ICommandBuffer CommandBuffer { get; init; }
 }
 
+// TODO: We may don't need this anymore. We Use RenderExtractionSystem to extract render data from entities and pass them to IRenderPipeline to render.
+
 /// <summary>
 /// High-level renderer interface that uses RHI abstractions
 /// </summary>
@@ -34,4 +36,4 @@ public interface IRenderer : IDisposable
     /// <param name="commandAllocator">Command allocator to use for rendering</param>
     /// <returns>Result of the rendering operation</returns>
     Result Render(ICommandAllocator commandAllocator);
-}
+}