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/coin/axivion/ci_config_linux.json

@@ -0,0 +1,44 @@
+{
+    "Project": {
+        "BuildSystemIntegration": {
+            "child_order": [
+                "GCCSetup",
+                "CMake",
+                "LinkLibraries"
+            ]
+        },
+        "CMake": {
+            "_active": true,
+            "_copy_from": "CMakeIntegration",
+            "build_environment": {},
+            "build_options": "-j4",
+            "generate_options": "--fresh",
+            "generator": "Ninja"
+        },
+        "GCCSetup": {
+            "_active": true,
+            "_copy_from": "Command",
+            "build_command": "gccsetup --cc gcc --cxx g++ --config ../../../axivion/"
+        },
+        "LinkLibraries": {
+            "_active": true,
+            "_copy_from": "AxivionLinker",
+            "input_files": [
+                "build/lib/lib*.so*.ir",
+                "build/qml/*/lib*.so*.ir"
+            ],
+            "ir": "build/$(env:TESTED_MODULE_COIN).ir",
+            "plugin_files": [
+                "build/plugins/*/lib*.so*.ir"
+            ]
+        }
+    },
+    "_Format": "1.0",
+    "_Version": "7.6.2",
+    "_VersionNum": [
+        7,
+        6,
+        2,
+        12725
+    ]
+}