refactor(srp): remove managed frame planning hook

- derive fullscreen stage planning from pipeline render-graph support
- trim planning-only APIs from the managed SRP bridge and public surface
- update probes and tests to lock the slimmer SRP API boundary

managed/XCEngine.ScriptCore/Rendering/Renderer/ScriptableRendererData.cs

@@ -44,28 +44,6 @@ namespace XCEngine.Rendering.Renderer
             }
         }
 
-        internal void ConfigureCameraFramePlanInstance(
-            ScriptableRenderPipelinePlanningContext context)
-        {
-            ConfigureCameraFramePlan(context);
-
-            ScriptableRendererFeature[] rendererFeatures =
-                GetRendererFeatures();
-            for (int i = 0; i < rendererFeatures.Length; ++i)
-            {
-                ScriptableRendererFeature rendererFeature =
-                    rendererFeatures[i];
-                if (rendererFeature == null ||
-                    !rendererFeature.isActive)
-                {
-                    continue;
-                }
-
-                rendererFeature.ConfigureCameraFramePlan(
-                    context);
-            }
-        }
-
         protected virtual ScriptableRenderer CreateRenderer()
         {
             return null;
@@ -76,11 +54,6 @@ namespace XCEngine.Rendering.Renderer
         {
         }
 
-        protected virtual void ConfigureCameraFramePlan(
-            ScriptableRenderPipelinePlanningContext context)
-        {
-        }
-
         protected virtual ScriptableRendererFeature[] CreateRendererFeatures()
         {
             return Array.Empty<ScriptableRendererFeature>();