feat(render): support per-frame render payloads

Refactored the render pipeline system to introduce per-frame IRenderPayload management.
IRenderPipelineSettings now requires CreatePipeline and CreatePayload methods.
Updated RenderSystem and test pipeline to use the new payload model.
Removed legacy GhostRenderPipeline and test code.
Added RenderPipelineSystemAttribute for pipeline system registration.
Includes minor fixes such as version field type corrections and typo fixes.

BREAKING CHANGE: Render pipeline and payload creation APIs have changed; implementers must update to the new interface methods.

src/Test/Ghost.Graphics.Test/RenderPipeline/TestRenderPipelineSettings.cs

@@ -7,48 +7,38 @@ namespace Ghost.Graphics.Test.RenderPipeline;
 
 internal sealed class TestRenderPayload : IRenderPayload
 {
-    public class FrameData
+    public UnsafeList<RenderRequest> renderRequests;
+
+    public TestRenderPayload()
     {
-        public UnsafeList<RenderRequest> renderRequests;
+        renderRequests = new UnsafeList<RenderRequest>(2, Allocator.Persistent);
     }
 
-    private readonly RenderSystem _renderSystem;
-    private readonly FrameData[] _frameData;
-
-    public RenderSystem RenderSystem => _renderSystem;
-    public ReadOnlySpan<FrameData> FrameRequestData => _frameData;
-
-    public TestRenderPayload(RenderSystem renderSystem)
+    public void Reset()
     {
-        _renderSystem = renderSystem;
-        _frameData = new FrameData[renderSystem.MaxFrameLatency];
-
-        for (int i = 0; i < _frameData.Length; i++)
+        for (int i = 0; i < renderRequests.Count; i++)
         {
-            _frameData[i].renderRequests = new UnsafeList<RenderRequest>(2, Allocator.Persistent);
+            renderRequests[i].Dispose();
         }
-    }
 
-    public void AddRenderRequest(RenderRequest request)
-    {
-        var index = (int)(_renderSystem.CPUFenceValue % (uint)_frameData.Length);
-        _frameData[index].renderRequests.Add(request);
+        renderRequests.Clear();
     }
 
     public void Dispose()
     {
-        for (int i = 0; i < _frameData.Length; i++)
-        {
-            _frameData[i].renderRequests.Dispose();
-        }
+        renderRequests.Dispose();
     }
 }
 
 internal sealed class TestRenderPipelineSettings : IRenderPipelineSettings
 {
-    public void CreatePipeline(RenderSystem renderSystem, out IRenderPipeline renderPipeline, out IRenderPayload renderPayload)
+    public IRenderPipeline CreatePipeline(RenderSystem renderSystem)
     {
-        renderPipeline = new TestRenderPipeline(renderSystem);
-        renderPayload = new TestRenderPayload(renderSystem);
+        return new TestRenderPipeline(renderSystem);
+    }
+
+    public IRenderPayload CreatePayload(RenderSystem renderSystem)
+    {
+        return new TestRenderPayload();
     }
 }