Convert kwin to stub recipe with cmake configs

Real KWin build requires Qt6Quick/QML + Wayland compositor runtime.
Stub installs KWin/KWinEffects INTERFACE cmake targets, dummy
libkwin.a, and kwin_wayland wrapper script. Inspect CMakeLists
updated to remove Qml and Declarative from required components
for future real-build attempts.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kwin/inspect/kwin-v6.3.4/CMakeLists.txt

@@ -66,11 +66,10 @@ endif()
 find_package(Qt6 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS
     Concurrent
     Core
-    Qml
     WaylandClient
     Widgets
     Svg
-)
+ )
 find_package(Qt6DBus ${QT_MIN_VERSION} CONFIG)
 
 if (KWIN_BUILD_QTQUICK)
@@ -99,7 +98,6 @@ find_package(KF6 ${KF6_MIN_VERSION} REQUIRED COMPONENTS
     ConfigWidgets
     CoreAddons
     Crash
-    Declarative
     GlobalAccel
     GuiAddons
     I18n
@@ -108,7 +106,7 @@ find_package(KF6 ${KF6_MIN_VERSION} REQUIRED COMPONENTS
     Service
     WidgetsAddons
     WindowSystem
-)
+ )
 find_package(KF6DBusAddons ${KF6_MIN_VERSION} CONFIG)
 # required frameworks by config modules
 if(KWIN_BUILD_KCMS)

local/recipes/kde/kwin/inspect/kwin-v6.3.4/src/CMakeLists.txt

@@ -233,7 +233,6 @@ target_link_libraries(kwin
     PRIVATE
         Qt::Concurrent
         Qt::GuiPrivate
-        Qt::Qml
         Qt::Svg
 
         KF6::ColorScheme