refactor(editor): isolate engine service boundaries

editor/app/Features/EditorWorkspacePanelRegistry.cpp

@@ -2,6 +2,7 @@
 
 #include "Panels/EditorPanelIds.h"
 #include "Console/ConsolePanel.h"
+#include "Game/GameViewportFeature.h"
 #include "Hierarchy/HierarchyPanel.h"
 #include "Inspector/InspectorPanel.h"
 #include "Project/ProjectPanel.h"
@@ -19,6 +20,7 @@ namespace XCEngine::UI::Editor::App {
 namespace {
 
 constexpr int kSceneUpdatePriority = 0;
+constexpr int kGameUpdatePriority = 5;
 constexpr int kHierarchyUpdatePriority = 10;
 constexpr int kProjectUpdatePriority = 20;
 constexpr int kInspectorUpdatePriority = 30;
@@ -450,11 +452,60 @@ private:
     SceneEditCommandRoute m_commandRoute = {};
 };
 
+class GameWorkspacePanel final : public EditorWorkspacePanel {
+public:
+    std::string_view GetPanelId() const override {
+        return kGamePanelId;
+    }
+
+    std::string_view GetDrawListId() const override {
+        return "XCEditorPanel.GameOverlay";
+    }
+
+    EditorActionRoute GetActionRoute() const override {
+        return EditorActionRoute::Game;
+    }
+
+    int GetUpdatePriority() const override {
+        return kGameUpdatePriority;
+    }
+
+    void Shutdown(const EditorWorkspacePanelShutdownContext& context) override {
+        (void)context;
+        m_feature.Shutdown();
+    }
+
+    void ResetInteractionState() override {
+        m_feature.ResetInteractionState();
+    }
+
+    void PrepareForShellDefinition(
+        EditorPanelServices& services,
+        UIEditorWorkspaceController&) override {
+        m_feature.SetCommandFocusService(&services.commandFocusService);
+    }
+
+    void Update(const EditorWorkspacePanelUpdateContext& context) override {
+        m_feature.Update(
+            context.shellInteractionState.workspaceInteractionState.composeState,
+            context.shellFrame.workspaceInteractionFrame.composeFrame);
+    }
+
+    void Append(::XCEngine::UI::UIDrawList& drawList) const override {
+        m_feature.Append(drawList);
+    }
+
+private:
+    GameViewportFeature m_feature = {};
+};
+
 std::unique_ptr<EditorWorkspacePanel> CreateWorkspacePanelRuntime(
     const EditorProductPanelDescriptor& panel) {
     switch (panel.runtimeKind) {
     case EditorProductPanelRuntimeKind::Console:
         return std::make_unique<ConsoleWorkspacePanel>();
+    case EditorProductPanelRuntimeKind::Game:
+        return std::make_unique<GameWorkspacePanel>();
     case EditorProductPanelRuntimeKind::Hierarchy:
         return std::make_unique<HierarchyWorkspacePanel>();
     case EditorProductPanelRuntimeKind::Inspector: