kde/Plasma: libplasma SELLADO → Plasma-foundation 5/5 (deuda Qt-xcb cerrada end-to-end)

libplasma con WITHOUT_X11=OFF (X11 habilitado): con qtbase-xcb + kwindowsystem-X11 + set X11 en deps,
el path X11 es consistente (BlurEffectWatcher::nativeEventFilter implementado bajo HAVE_X11). Antes con
WITHOUT_X11=ON pero X11 presente el guard quedaba inconsistente (pure virtual sin implementar).

Plasma-foundation 5/5: kdecoration ksvg plasma-activities kglobalacceld libplasma (+qt5compat).
DEUDA Qt-xcb SALDADA END-TO-END: qtbase-xcb (libqxcb.so) → kwindowsystem-X11 (KX11Extras) → kio-X11 →
libplasma. El overlay-merge (fix KIO) probado con dep-sets de ~66 (libplasma). Camino a kwin/plasmashell abierto.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

recipes/incoming-kde/libplasma.toml

@@ -45,7 +45,7 @@ cmake -B build -G Ninja -Wno-dev \
   -DCMAKE_C_COMPILER="$ZW/cc" -DCMAKE_CXX_COMPILER="$ZW/cxx" -DCMAKE_ASM_COMPILER="$ZW/cc" \
   -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_PREFIX_PATH=/usr \
   -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=OFF \
-  -DBUILD_TESTING=OFF -DBUILD_PYTHON_BINDINGS=OFF -DBUILD_EXAMPLES=OFF -DWITHOUT_X11=ON
+  -DBUILD_TESTING=OFF -DBUILD_PYTHON_BINDINGS=OFF -DBUILD_EXAMPLES=OFF -DWITHOUT_X11=OFF
 '''
 compile = "cmake --build build"
 install = "DESTDIR=/out cmake --install build"