Refactor instance update flow, asset registry, and texture IO

- Renamed AddInstanceRequest to UpdateInstanceRequest; unified add/update logic for GPU instances
- Introduced UpdateGPUInstanceSystem to handle changed MeshInstance components
- Replaced QueryBuilder.Create() with QueryBuilder.New() for consistency
- Switched versioning in ChunkView HasChanged/HasStructuralChanged to uint
- Added extension-to-AssetType mapping in AssetHandlerRegistry
- Changed TextureAssetHandler/Processor to use nint for image data
- Enhanced DDS cache: read mipmap count, handle invalid files
- Updated ProjectBrowserViewModel to use IAssetRegistry
- Upgraded Misaki.HighPerformance and System.IO.Hashing packages
- Set DependencyChainCapacity in JobSchedulerDesc
- Fixed instance buffer logic in GhostRenderPipeline
- Miscellaneous cleanups and namespace improvements

src/Test/Ghost.Graphics.Test/Systems/CameraMovingSystem.cs

@@ -15,7 +15,7 @@ internal class CameraMovingSystem : ISystem
 
     public void Initialize(ref readonly SystemAPI systemAPI)
     {
-        _cameraQueryID = QueryBuilder.Create()
+        _cameraQueryID = QueryBuilder.New()
             .WithAll<Camera, LocalToWorld>()
             .Build(systemAPI.World, true);