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

engine/include/XCEngine/Rendering/Pipelines/ManagedScriptableRenderPipelineAsset.h

@@ -11,7 +11,6 @@ namespace XCEngine {
 namespace Rendering {
 
 struct CameraRenderRequest;
-struct CameraFramePlan;
 struct DirectionalShadowPlanningSettings;
 
 namespace Pipelines {
@@ -54,7 +53,6 @@ public:
         const DirectionalShadowPlanningSettings& directionalShadowSettings)
         const override;
     FinalColorSettings GetDefaultFinalColorSettings() const override;
-    void ConfigureCameraFramePlan(CameraFramePlan& plan) const override;
 
 private:
     std::shared_ptr<const class ManagedRenderPipelineAssetRuntime>
@@ -85,9 +83,6 @@ public:
     virtual bool TryGetDefaultFinalColorSettings(FinalColorSettings&) const {
         return false;
     }
-
-    virtual void ConfigureCameraFramePlan(CameraFramePlan&) const {
-    }
 };
 
 class ManagedRenderPipelineBridge {

engine/include/XCEngine/Scripting/Mono/MonoScriptRuntime.h

@@ -266,8 +266,6 @@ private:
     MonoObject* CreateManagedScriptableRenderContext(uint64_t nativeHandle);
     MonoObject* CreateManagedScriptableRenderPipelineCameraRequestContext(
         uint64_t nativeHandle);
-    MonoObject* CreateManagedScriptableRenderPipelinePlanningContext(
-        uint64_t nativeHandle);
     MonoObject* GetManagedObject(uint32_t gcHandle) const;
     MonoMethod* ResolveManagedMethod(
         MonoClass* monoClass,
@@ -308,13 +306,11 @@ private:
     MonoClass* m_scriptableRenderPipelineClass = nullptr;
     MonoClass* m_scriptableRenderContextClass = nullptr;
     MonoClass* m_scriptableRenderPipelineCameraRequestContextClass = nullptr;
-    MonoClass* m_scriptableRenderPipelinePlanningContextClass = nullptr;
     MonoClass* m_serializeFieldAttributeClass = nullptr;
     MonoMethod* m_gameObjectConstructor = nullptr;
     MonoMethod* m_scriptableRenderContextConstructor = nullptr;
     MonoMethod* m_scriptableRenderPipelineCameraRequestContextConstructor =
         nullptr;
-    MonoMethod* m_scriptableRenderPipelinePlanningContextConstructor = nullptr;
     MonoClassField* m_managedGameObjectUUIDField = nullptr;
     MonoClassField* m_gameObjectUUIDField = nullptr;
     MonoClassField* m_scriptComponentUUIDField = nullptr;