Group A: source upstream binaries instead of self-built artifacts

The AUR does not allow packages to ship a binary tarball built by the
maintainer - a -bin package must repackage a deliverable published by
upstream. These six packages now do that:

  snapx-bin            upstream's self-contained Linux tar.zst
  zapzap-bin           upstream's pure-Python wheel
  faugus-launcher-bin  upstream's arch-independent .deb
  wiiudownloader-bin   upstream's AppImage
  waydroid-helper-bin  upstream's AppImage
  chiaki-ng-bin        upstream's AppImage

All six drop build_artifact() and switch to refresh_checksums(), so CI no
longer builds or hosts anything - it only tracks upstream's assets.

Where the asset name carries build metadata that does not follow from
pkgver (snapx, faugus-launcher), refresh_checksums() resolves it via the
GitHub API and syncs an _asset variable in the PKGBUILD.

Dependency lists are re-derived from what the bundles actually resolve
outside themselves; the AppImage payloads land in /opt with wrappers in
/usr/bin, because their entry points resolve paths relative to argv[0].

wiiudownloader-bin/.SRCINFO

@@ -1,22 +1,29 @@
 pkgbase = wiiudownloader-bin
-	pkgdesc = Download encrypted Wii U files from Nintendo's official servers (prebuilt)
+	pkgdesc = Download encrypted Wii U files from Nintendo's official servers (upstream AppImage)
 	pkgver = 2.99
-	pkgrel = 1
+	pkgrel = 2
 	url = https://github.com/Xpl0itU/WiiUDownloader
 	arch = x86_64
 	license = GPL-3.0-or-later
 	depends = glibc
-	depends = glib2
-	depends = hicolor-icon-theme
 	depends = libx11
-	depends = gtk3
-	depends = gdk-pixbuf2
-	depends = cairo
-	depends = pango
+	depends = libxcb
+	depends = wayland
 	depends = fontconfig
+	depends = freetype2
+	depends = harfbuzz
+	depends = fribidi
+	depends = zlib
+	depends = bzip2
+	depends = expat
+	depends = libgpg-error
+	depends = hicolor-icon-theme
 	provides = wiiudownloader
 	conflicts = wiiudownloader
-	source = wiiudownloader-bin-2.99-1.tar.zst::https://github.com/Felitendo/PKGBUILDS/releases/download/wiiudownloader-bin-2.99/wiiudownloader-bin-2.99.tar.zst
-	sha256sums = 1a43185b07869b8c25b71c3d43ddd829fd79af9d4cf6bfcfddb201f12cf8ff2e
+	noextract = wiiudownloader-bin-2.99.AppImage
+	options = !strip
+	options = !debug
+	source = wiiudownloader-bin-2.99.AppImage::https://github.com/Xpl0itU/WiiUDownloader/releases/download/v2.99/WiiUDownloader-Linux-x86_64.AppImage
+	sha256sums = 3a2e8e7f34a288308666032d6834db00c515a0c897a66a2ae1012702d017f240
 
 pkgname = wiiudownloader-bin