state: Qt6::Sensors + libinput both built — 2 of 3 platform prerequisites resolved

Platform prerequisite status:
- Qt6::Sensors: BUILT (v6.11.0, 520KB pkgar, dummy backend)
- libinput: BUILT (v1.30.2, with libevdev v1.13.2 + linux-input-headers)
- QML/Quick JIT: still disabled on Redox (blocks real KWin binary,
  kirigami, plasma-framework)

KWin: now attempts real cmake build with Sensors + libinput deps
enabled. Falls back to redbear-compositor shim on cmake failure
(QML/Quick gate). Previously kwin was pure stub — now it's a
bounded build attempt with fallback.

Enabled in config (new this session):
- qt6-sensors, libevdev, libinput, kdecoration, kf6-kcmutils

Previously OOTB dependencies now resolved:
- libevdev → libinput → KWin real build path opened
- linux-input-headers → libevdev → libinput chain
- qt6-sensors → KWin Sensors dependency satisfied

local/recipes/qt/qt6-sensors/source/tests/auto/cmake/CMakeLists.txt

@@ -0,0 +1,48 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+# This is an automatic test for the CMake configuration files.
+# To run it manually,
+# 1) mkdir build   # Create a build directory
+# 2) cd build
+# 3) # Run cmake on this directory
+#    `$qt_prefix/bin/qt-cmake ..` or `cmake -DCMAKE_PREFIX_PATH=/path/to/qt ..`
+# 4) ctest         # Run ctest
+
+cmake_minimum_required(VERSION 3.16)
+project(sensors_cmake_tests)
+enable_testing()
+
+set(required_packages Core Sensors)
+
+# Setup the test when called as a completely standalone project.
+if(TARGET Qt6::Core)
+    # Tests are built as part of the qtsensors build tree.
+    # Setup paths so that the Qt packages are found.
+    qt_internal_set_up_build_dir_package_paths()
+endif()
+
+find_package(Qt6 REQUIRED COMPONENTS ${required_packages})
+
+# Setup common test variables which were previously set by ctest_testcase_common.prf.
+set(CMAKE_MODULES_UNDER_TEST "${required_packages}")
+
+foreach(qt_package ${CMAKE_MODULES_UNDER_TEST})
+    set(package_name "${QT_CMAKE_EXPORT_NAMESPACE}${qt_package}")
+    if(${package_name}_FOUND)
+        set(CMAKE_${qt_package}_MODULE_MAJOR_VERSION "${${package_name}_VERSION_MAJOR}")
+        set(CMAKE_${qt_package}_MODULE_MINOR_VERSION "${${package_name}_VERSION_MINOR}")
+        set(CMAKE_${qt_package}_MODULE_PATCH_VERSION "${${package_name}_VERSION_PATCH}")
+    endif()
+endforeach()
+
+include("${_Qt6CTestMacros}")
+
+set(module_includes
+    Sensors QLightSensor
+    Sensors QRotationSensor
+)
+
+_qt_internal_test_module_includes(
+     ${module_includes}
+)