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/docs/DESKTOP-STACK-CURRENT-STATUS.md

@@ -190,7 +190,7 @@ Recipe versions tracked in this tree: KF6 frameworks v6.10.0, Plasma v6.3.4, Att
 | **Phase 5 (Hardware GPU) — driver scaffold** | | |
 | `redox-drm` | **builds** | DRM scheme daemon with Intel Gen8-Gen12 + AMD device support and quirk tables; no hardware validation |
 | `mesa` | **builds** | Software llvmpipe renderer; hardware renderers (radeonsi/iris) not cross-compiled |
-| `amdgpu` | **compile triage** | Imported Linux AMD DC/TTM/core C port; bounded path compiles |
+| `amdgpu` | **builds + included in redbear-full** (2026-04-29) | Imported Linux AMD DC/TTM/core C port; bounded path compiles; enabled in config (`amdgpu = {}`) |
 | `test-phase5-network-qemu.sh` | **exists** | Legacy Phase 5 network/session QEMU launcher (pre-v2.0 plan) |
 
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