kde/H-QML: mesa+libdrm en deps Qt (Qt6::Gui exige EGL al configurar)

Bug: qtshadertools selló VACÍO — 'Could NOT find EGL' → 'TARGET Qt::Gui not met'
→ skip build → sin qsb → qtdeclarative desactivó QtQuick (solo motor QML). El
Qt6::Gui de qtbase (construido con EGL) exige EGL en TODO consumidor. Fix: mesa
(trae EGL headers+egl.pc+libEGL) + libdrm en deps de qtshadertools/qtsvg/
qtdeclarative. Patrón para todo consumidor de Qt6::Gui (KF6 incluido).

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

recipes/incoming-kde/qtdeclarative.toml

@@ -41,4 +41,4 @@ fi
 '''
 
 [deps]
-build = ["cmake", "samurai", "python3", "pkgconf", "qtbase", "qtshadertools", "qtsvg", "qtlanguageserver"]
+build = ["cmake", "samurai", "python3", "pkgconf", "qtbase", "mesa", "libdrm", "qtshadertools", "qtsvg", "qtlanguageserver"]

recipes/incoming-kde/qtshadertools.toml

@@ -40,4 +40,4 @@ fi
 '''
 
 [deps]
-build = ["cmake", "samurai", "python3", "pkgconf", "qtbase"]
+build = ["cmake", "samurai", "python3", "pkgconf", "qtbase", "mesa", "libdrm"]

recipes/incoming-kde/qtsvg.toml

@@ -32,4 +32,4 @@ compile = "cmake --build build"
 install = "DESTDIR=/out cmake --install build"
 
 [deps]
-build = ["cmake", "samurai", "python3", "pkgconf", "qtbase"]
+build = ["cmake", "samurai", "python3", "pkgconf", "qtbase", "mesa", "libdrm"]