Extract camera frame fullscreen stage planner

new_editor/app/Composition/EditorShellAssetBuilder.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <XCEditor/Shell/UIEditorShellAsset.h>
+#include <XCEditor/Shell/UIEditorWorkspaceController.h>
+
+#include <cstdint>
+#include <filesystem>
+#include <string_view>
+
+namespace XCEngine::UI::Editor::App {
+
+enum class ProductEditorShellVariant : std::uint8_t {
+    Primary = 0,
+    DetachedWindow
+};
+
+EditorShellAsset BuildProductShellAsset(const std::filesystem::path& repoRoot);
+
+UIEditorShellInteractionDefinition BuildProductShellInteractionDefinition(
+    const EditorShellAsset& asset,
+    const UIEditorWorkspaceController& controller,
+    std::string_view statusText,
+    std::string_view captureText,
+    ProductEditorShellVariant variant = ProductEditorShellVariant::Primary);
+
+} // namespace XCEngine::UI::Editor::App