Advance Wayland and KDE package bring-up

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

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

local/recipes/kde/kf6-extra-cmake-modules/source/kde-modules/appstreamtest.cmake

@@ -0,0 +1,37 @@
+file(GLOB install_done "${INSTALL_FILES}")
+if (install_done)
+    file(READ "${INSTALL_FILES}" out)
+    string(REPLACE "\n" ";" out "${out}")
+else()
+    message("Not installed yet, skipping")
+    set(out "")
+endif()
+
+set(metadatafiles)
+foreach(file IN LISTS out)
+    if(NOT (file MATCHES ".+\\.appdata.xml" OR file MATCHES ".+\\.metainfo.xml"))
+        continue()
+    endif()
+
+    if(EXISTS ${file})
+        list(APPEND metadatafiles ${file})
+    else()
+        message(WARNING "Could not find ${file}")
+    endif()
+endforeach()
+
+if(metadatafiles)
+    set(appstreamcliout "")
+    execute_process(COMMAND ${APPSTREAMCLI} validate --no-net ${metadatafiles}
+        ERROR_VARIABLE appstreamcliout
+        OUTPUT_VARIABLE appstreamcliout
+        RESULT_VARIABLE result
+    )
+
+    if(result EQUAL 0)
+        set(msgType STATUS)
+    else()
+        set(msgType FATAL_ERROR)
+    endif()
+    message(${msgType} ${appstreamcliout})
+endif()