cmake: set KDReports_FOUND when KDReports-qt6 detected so LtsPrinting guard behaves correctly

cmake/FindKDReports.cmake

@@ -12,11 +12,13 @@ endif()
 # If KDReports already provided via variables, use them
 IF(KDREPORTS_INCLUDE_DIR AND KDREPORTS_KDREPORTS_INCLUDE_DIR AND KDREPORTS_LIBRARY)
   SET(KDREPORTS_FOUND TRUE)
+  SET(KDReports_FOUND TRUE)
 ELSE()
   # Prefer KDReports-qt6 package config if installed under standard prefixes
   if(EXISTS "${CMAKE_PREFIX_PATH}/lib/cmake/KDReports-qt6" OR EXISTS "/usr/local/lib/cmake/KDReports-qt6")
     message(STATUS "Found KDReports-qt6 package config in CMAKE_PREFIX_PATH or /usr/local")
     set(KDREPORTS_FOUND TRUE)
+    set(KDReports_FOUND TRUE)
     # Best-effort defaults; specific projects will use the imported target below
     set(KDREPORTS_INCLUDE_DIR "/usr/local/include")
     set(KDREPORTS_KDREPORTS_INCLUDE_DIR "/usr/local/include")