feat(anaconda): integrate anaconda installer with openbox and add licensing documentation

Add Anaconda installer integration to FWS live environment:

- Implement Anaconda launcher in .xinitrc with comprehensive error logging and debugging support
- Add anaconda and anaconda-widgets packages to baseline and releng ISO configs
- Fix anaconda-widgets PKGBUILD: replace gladeui with glib2-devel, disable Glade module
- Update anaconda PKGBUILD with improved dependencies and build configuration
- Add python-blivet PKGBUILD with detailed dependency documentation

Enhance documentation and branding:

- Expand AUTHORS.rst to clarify FWS vs archiso authorship and licensing
- Update CONTRIBUTING.rst with inbound=outbound licensing policy and DCO requirements
- Extend README.md with comprehensive legal basis table and licensing checklist
- Remove Arch Linux references from MOTD and update to FWS GitHub project page
- Fix fastfetch.sh to avoid read-only variable conflict in zsh
- Add xterm to packages for installer debugging

All changes maintain GPL-3.0-or-later compliance and improve GPL offer transparency.

pkgbuilds/anaconda-widgets/PKGBUILD

@@ -13,18 +13,25 @@ arch=('x86_64')
 url="https://github.com/rhinstaller/anaconda"
 license=('GPL-2.0-or-later')
 depends=('gtk3' 'glib2' 'pango' 'gdk-pixbuf2' 'python-gobject')
+# NB : pas de 'glade' — on désactive le module Glade (catalogue pour le designer,
+# inutile au runtime). Sur Arch le paquet s'appelle 'glade' (pas 'gladeui').
+# glib2-devel : fournit gdbus-codegen / glib-mkenums / glib-genmarshal (outils
+# de codegen GLib, scindés de glib2 sur Arch). Indispensable au build des widgets.
 makedepends=('autoconf' 'automake' 'libtool' 'gettext' 'intltool'
-             'gobject-introspection' 'gtk-doc' 'gladeui' 'python')
+             'gobject-introspection' 'gtk-doc' 'glib2-devel' 'python')
 source=("anaconda-$pkgver.tar.gz::https://github.com/rhinstaller/anaconda/archive/refs/tags/anaconda-$pkgver.tar.gz")
 sha256sums=('5ef1464bff7f28a4a09a821cbb0121f09ef504ec169288d742373f86807ec4ed')
 _srcdir="anaconda-anaconda-$pkgver"
 
 build() {
   cd "$srcdir/$_srcdir/widgets"
+  # Glade désactivé : le flag doit être posé À LA FOIS pour autoreconf (variable
+  # d'env lue par m4 dans configure.ac) ET pour configure (--disable-glade).
+  export ANACONDA_DISABLE_GLADE=yes
   # autogen.sh : autoreconf -vfi + copie /usr/share/gettext/gettext.h dans src/.
   ./autogen.sh
   ./configure --prefix=/usr --libdir=/usr/lib \
-      --disable-static --disable-gtk-doc --enable-introspection
+      --disable-static --disable-gtk-doc --disable-glade --enable-introspection
   make
 }