fix: QML gate — kirigami deps (qtsvg, qtshadertools), fresh source, toolchain include paths
QML gate progress:
1. ✅ QML headers found: redox-toolchain CMAKE_CXX_FLAGS includes QtQml/QtQuick
2. ✅ Source clean: fresh tar extracted (previous builds corrupted with _OFF macros)
3. ✅ Qt6Svg: added qtsvg dependency
4. ✅ Qt6ShaderTools: cmake config + .so present in sysroot
5. ❌ qt6_add_shaders cmake function missing — Qt6 cross-comp gap
Kirigami deps now: qtbase, qtdeclarative, qtsvg, qtshadertools, ECM
Config passes cmake find_package for Qt6Core, Quick, Gui, Svg, QuickControls2,
Concurrent, ShaderTools. All targets found. Blocked on qt6_add_shaders()
not in Qt6ShaderTools cmake macros — needs Qt6 build infrastructure fix.
vasilito
f55acba68c