refactor(new_editor): tighten app dependency boundaries

new_editor/app/Rendering/Native/NativeRenderer.h

@@ -4,6 +4,8 @@
 #define NOMINMAX
 #endif
 
+#include "Host/TextureHost.h"
+
 #include <Rendering/D3D12/D3D12WindowInteropContext.h>
 #include <Rendering/D3D12/D3D12WindowRenderer.h>
 
@@ -29,7 +31,9 @@
 
 namespace XCEngine::UI::Editor::Host {
 
-class NativeRenderer : public ::XCEngine::UI::Editor::UIEditorTextMeasurer {
+class NativeRenderer
+    : public TextureHost
+    , public ::XCEngine::UI::Editor::UIEditorTextMeasurer {
 public:
     bool Initialize(HWND hwnd);
     void Shutdown();
@@ -47,13 +51,13 @@ public:
     bool LoadTextureFromFile(
         const std::filesystem::path& path,
         ::XCEngine::UI::UITextureHandle& outTexture,
-        std::string& outError);
+        std::string& outError) override;
     bool LoadTextureFromMemory(
         const std::uint8_t* data,
         std::size_t size,
         ::XCEngine::UI::UITextureHandle& outTexture,
-        std::string& outError);
-    void ReleaseTexture(::XCEngine::UI::UITextureHandle& texture);
+        std::string& outError) override;
+    void ReleaseTexture(::XCEngine::UI::UITextureHandle& texture) override;
     float MeasureTextWidth(
         const ::XCEngine::UI::Editor::UIEditorTextMeasureRequest& request) const override;
     bool CaptureToPng(