feat(kotlin-compose): design system + 33 components + gallery_kt + e2e android emulator + scaffolder fixes

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

cpp/apps/chart_demo/main.cpp

@@ -45,12 +45,6 @@ static void init_data() {
 void render() {
     init_data();
 
-    // MainMenuBar (solo Settings — chart_demo no tiene paneles toggleables)
-    fn_ui::app_menubar(nullptr, 0, nullptr);
-
-    // Full-window dockspace
-    ImGui::DockSpaceOverViewport(0, ImGui::GetMainViewport());
-
     if (ImGui::Begin("fn_registry — Chart Demo")) {
         if (ImGui::BeginTabBar("##charts")) {
             if (ImGui::BeginTabItem("Line Plot")) {