Workcat: cute desktop cat, no window closing

Reworks the example into a pure desktop-pet: the cat wanders, sits, grooms,
stretches, dashes and naps, reacts to petting and dragging, and follows the
cursor with its eyes. The window-scanning and Accessibility code is gone.

The cat is drawn from rounded primitives plus Shape paths in a fixed 100x90
design space, so it scales cleanly to any size.

Linux/X11 is the primary target: the tray is optional, Wayland gets a warning,
and WORKCAT_X11_BYPASS / WORKCAT_OPAQUE cover uncooperative window managers.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

CMakeLists.txt

@@ -0,0 +1,64 @@
+cmake_minimum_required(VERSION 3.21)
+
+project(Workcat
+    VERSION 0.2.0
+    DESCRIPTION "A cute desktop cat that wanders along the bottom of your screen"
+    LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 6.8 REQUIRED COMPONENTS Core Gui Quick QuickControls2 Widgets)
+qt_standard_project_setup(REQUIRES 6.8)
+
+qt_add_executable(workcat
+    src/main.cpp
+    src/catcontroller.h src/catcontroller.cpp
+    src/traycontroller.h src/traycontroller.cpp
+    src/appsettings.h src/appsettings.cpp
+    src/platforminfo.h src/platforminfo.cpp
+)
+
+target_include_directories(workcat PRIVATE src)
+
+# QML files live in qml/ but register at the module root (Workcat.Main etc.)
+set(WORKCAT_QML Main Cat SettingsWindow)
+foreach(qmlfile IN LISTS WORKCAT_QML)
+    set_source_files_properties(qml/${qmlfile}.qml PROPERTIES QT_RESOURCE_ALIAS ${qmlfile}.qml)
+    list(APPEND WORKCAT_QML_FILES qml/${qmlfile}.qml)
+endforeach()
+
+qt_add_qml_module(workcat
+    URI Workcat
+    VERSION 1.0
+    QML_FILES ${WORKCAT_QML_FILES}
+)
+
+target_link_libraries(workcat PRIVATE
+    Qt6::Core Qt6::Gui Qt6::Quick Qt6::QuickControls2 Qt6::Widgets)
+
+set_target_properties(workcat PROPERTIES
+    MACOSX_BUNDLE TRUE
+    MACOSX_BUNDLE_INFO_PLIST ${CMAKE_SOURCE_DIR}/Info.plist.in
+    MACOSX_BUNDLE_GUI_IDENTIFIER app.workcat.example
+    MACOSX_BUNDLE_BUNDLE_NAME Workcat
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    WIN32_EXECUTABLE TRUE)
+
+include(GNUInstallDirs)
+install(TARGETS workcat
+    BUNDLE DESTINATION .
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+if(UNIX AND NOT APPLE)
+    install(FILES linux/workcat.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/applications)
+endif()
+
+qt_generate_deploy_qml_app_script(
+    TARGET workcat
+    OUTPUT_SCRIPT deploy_script
+    MACOS_BUNDLE_POST_BUILD
+    NO_UNSUPPORTED_PLATFORM_ERROR
+    DEPLOY_USER_QML_MODULES_ON_UNSUPPORTED_PLATFORM)
+install(SCRIPT ${deploy_script})