feat(new_editor): wire project, inspector, and viewport runtime

new_editor/include/XCEditor/Shell/UIEditorShellCapturePolicy.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <XCEditor/Shell/UIEditorShellInteraction.h>
+
+namespace XCEngine::UI {
+struct UIPoint;
+}
+
+namespace XCEngine::UI::Editor {
+
+bool ShouldStartImmediateUIEditorShellPointerCapture(
+    const UIEditorShellInteractionFrame& shellFrame,
+    const ::XCEngine::UI::UIPoint& clientPoint);
+
+} // namespace XCEngine::UI::Editor