Give the platform guard its own detector copy instead of moving it

Moving omarchy-hw-platform from omarchy to omarchy-settings loses the file
when the dev pair installs in separate transactions, since omarchy-dev does
not pin omarchy-settings-dev's version. Settings now installs a copy beside
the guard script and omarchy keeps its detector, so no file changes owner.

pkgbuilds/omarchy-dev/PKGBUILD

@@ -110,15 +110,14 @@ package() {
 
   # Runtime binaries — ship everything in bin/ except the debug helpers
   # that ship from omarchy-settings (needed before omarchy is installed,
-  # e.g. on the ISO live env), and the platform detector, which the settings
-  # package's pacman platform guard runs before omarchy is installed.
+  # e.g. on the ISO live env).
   install -d "$pkgdir/usr/bin" "$pkgdir/usr/share/omarchy/bin"
   for bin in bin/*; do
     [[ -f $bin ]] || continue
     local base
     base=$(basename "$bin")
     case "$base" in
-      omarchy-debug|omarchy-debug-idle|omarchy-upload-log|omarchy-hw-platform)
+      omarchy-debug|omarchy-debug-idle|omarchy-upload-log)
         continue
         ;;
     esac