🐛 fix(build): read region profiles from settings package

- 🐛 default/ ships in omarchy-settings, so published builds silently bundled no regions
- ✅ cover the published package path, a package without profiles, and an unreadable one

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QuATgjU4mnqpqSLAKMQ14g

builder/prepare-regions.sh

@@ -6,12 +6,25 @@
 # defaults stay in the runtime, not in a second set of ISO-specific templates.
 set -euo pipefail
 
-regions="$1"
+regions_source="$1"
 iso_payload="$2"
 online_config="$3"
 
-# A runtime predating region profiles ships none; the ISO then installs
-# global targets only, exactly as before.
+# The source is a checkout's default/regions, or the published settings
+# package that ships default/. One predating region profiles ships none; the
+# ISO then installs global targets only, exactly as before. Anything else that
+# fails here, such as an unreadable package, aborts the build.
+regions="$regions_source"
+if [[ -f $regions_source ]]; then
+  member=usr/share/omarchy/default/regions
+  listing=$(bsdtar -tf "$regions_source")
+  if grep -q "^$member/" <<<"$listing"; then
+    extracted=$(mktemp -d)
+    trap 'rm -rf "$extracted"' EXIT
+    bsdtar -xf "$regions_source" -C "$extracted" "$member"
+    regions="$extracted/$member"
+  fi
+fi
 if [[ ! -d $regions ]]; then
   echo "Runtime ships no region profiles; every install will be global."
   exit 0