feat(pkgbuild): add anaconda and anaconda-widgets packages with dependency ordering

Add PKGBUILD files for anaconda (45.8) and anaconda-widgets (45.8) to support Fedora's Anaconda installer ported to Arch for FWS with liveimg payload.

anaconda-widgets:
- GTK3 UI widgets with GObject introspection
- Extracted from anaconda source as autonomous autotools project
- Versioned on anaconda release

anaconda:
- Main installer with comprehensive dependency set
- Includes note that further iteration needed on real Arch for buildtime deps and Fedora-specific paths
- Removes widgets files (provided by anaconda-widgets package)

Update setup-aur.sh to build local packages in proper dependency order:
- Define LOCAL_BUILD_ORDER array to ensure leaf packages build first
- anaconda builds last (depends on all other local packages)
- Extract build logic into build_local_pkg function
- Fallback to alphabetical scan for future unlisted packages
- This prevents makepkg -s failures when deps are not yet installed

pkgbuilds/anaconda-widgets/PKGBUILD

@@ -0,0 +1,38 @@
+# Maintainer: FWS
+# Widgets GTK3 de l'installateur Anaconda (rhinstaller). Lib C + introspection
+# GObject (AnacondaWidgets-1.0.typelib) + overrides gi. Le sous-dossier widgets/
+# du source anaconda est un projet autotools AUTONOME (son propre configure.ac,
+# AC_INIT([AnacondaWidgets],[3.4])) → on le construit seul depuis le tarball
+# anaconda-45.8. Paquet versionné sur la release anaconda (comme le sous-paquet
+# Fedora anaconda-widgets).
+pkgname=anaconda-widgets
+pkgver=45.8
+pkgrel=1
+pkgdesc="GTK3 UI widgets for the Anaconda installer (introspection inclus)"
+arch=('x86_64')
+url="https://github.com/rhinstaller/anaconda"
+license=('GPL-2.0-or-later')
+depends=('gtk3' 'glib2' 'pango' 'gdk-pixbuf2' 'python-gobject')
+makedepends=('autoconf' 'automake' 'libtool' 'gettext' 'intltool'
+             'gobject-introspection' 'gtk-doc' 'gladeui' '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/$_srcdir/widgets"
+  # autogen.sh : autoreconf -vfi + copie /usr/share/gettext/gettext.h dans src/.
+  ./autogen.sh
+  ./configure --prefix=/usr --libdir=/usr/lib \
+      --disable-static --disable-gtk-doc --enable-introspection
+  make
+}
+
+package() {
+  cd "$srcdir/$_srcdir/widgets"
+  make DESTDIR="$pkgdir" install
+  find "$pkgdir" -name '*.la' -delete
+  # NB : on inclut aussi les fichiers -devel (.so/.h/.pc + catalogue glade) ;
+  # inoffensif sur l'ISO et évite de manquer un fichier runtime. Le paquet
+  # « anaconda » retirera ces mêmes fichiers de son propre pkgdir.
+}