refactor(new_editor): tighten app dependency boundaries

new_editor/app/Features/Scene/SceneEditCommandRoute.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <XCEditor/App/EditorEditCommandRoute.h>
+#include "Commands/EditorEditCommandRoute.h"
 
 #include <string>
 

new_editor/app/Features/Scene/SceneViewportController.cpp

@@ -3,9 +3,7 @@
 #include "Rendering/Viewport/ViewportHostService.h"
 #include "Scene/EditorSceneRuntime.h"
 
-#include <Rendering/Native/NativeRenderer.h>
-
-#include <XCEditor/App/EditorPanelIds.h>
+#include "Composition/EditorPanelIds.h"
 #include <XCEditor/Viewport/UIEditorViewportInputBridge.h>
 #include <XCEditor/Viewport/UIEditorViewportSlot.h>
 
@@ -120,12 +118,12 @@ void ApplySceneToolMode(
 
 void SceneViewportController::Initialize(
     const std::filesystem::path& repoRoot,
-    Host::NativeRenderer& renderer) {
+    Host::TextureHost& renderer) {
     m_toolOverlay.Initialize(repoRoot, renderer);
     ResetInteractionState();
 }
 
-void SceneViewportController::Shutdown(Host::NativeRenderer& renderer) {
+void SceneViewportController::Shutdown(Host::TextureHost& renderer) {
     m_toolOverlay.Shutdown(renderer);
     ResetInteractionState();
 }

new_editor/app/Features/Scene/SceneViewportController.h

@@ -20,7 +20,7 @@ class ViewportHostService;
 
 namespace XCEngine::UI::Editor::Host {
 
-class NativeRenderer;
+class TextureHost;
 
 } // namespace XCEngine::UI::Editor::Host
 
@@ -30,8 +30,8 @@ class SceneViewportController {
 public:
     void Initialize(
         const std::filesystem::path& repoRoot,
-        Host::NativeRenderer& renderer);
-    void Shutdown(Host::NativeRenderer& renderer);
+        Host::TextureHost& renderer);
+    void Shutdown(Host::TextureHost& renderer);
     void ResetInteractionState();
 
     void Update(

new_editor/app/Features/Scene/SceneViewportToolOverlay.cpp

@@ -1,6 +1,6 @@
 #include "Features/Scene/SceneViewportToolOverlay.h"
 
-#include <Rendering/Native/NativeRenderer.h>
+#include "Host/TextureHost.h"
 
 #include <algorithm>
 #include <array>
@@ -57,7 +57,7 @@ UIRect BuildButtonRect(const UIRect& panelRect, std::size_t index) {
 
 bool SceneViewportToolOverlay::Initialize(
     const std::filesystem::path& repoRoot,
-    Host::NativeRenderer& renderer) {
+    Host::TextureHost& renderer) {
     Shutdown(renderer);
 
     const std::filesystem::path iconRoot =
@@ -87,7 +87,7 @@ bool SceneViewportToolOverlay::Initialize(
     return loadedAnyTexture;
 }
 
-void SceneViewportToolOverlay::Shutdown(Host::NativeRenderer& renderer) {
+void SceneViewportToolOverlay::Shutdown(Host::TextureHost& renderer) {
     for (ToolTextureSet& textureSet : m_toolTextures) {
         renderer.ReleaseTexture(textureSet.inactiveTexture);
         renderer.ReleaseTexture(textureSet.activeTexture);

new_editor/app/Features/Scene/SceneViewportToolOverlay.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "Scene/SceneToolState.h"
+#include "Host/HostFwd.h"
 
 #include <XCEngine/UI/DrawData.h>
 #include <XCEngine/UI/Types.h>
@@ -9,12 +10,6 @@
 #include <filesystem>
 #include <cstddef>
 
-namespace XCEngine::UI::Editor::Host {
-
-class NativeRenderer;
-
-} // namespace XCEngine::UI::Editor::Host
-
 namespace XCEngine::UI::Editor::App {
 
 inline constexpr std::size_t kSceneViewportToolOverlayInvalidIndex =
@@ -41,8 +36,8 @@ class SceneViewportToolOverlay {
 public:
     bool Initialize(
         const std::filesystem::path& repoRoot,
-        Host::NativeRenderer& renderer);
-    void Shutdown(Host::NativeRenderer& renderer);
+        Host::TextureHost& renderer);
+    void Shutdown(Host::TextureHost& renderer);
     void ResetFrame();
 
     void BuildFrame(