fix(retrieval): keep Bash auto result status

scripts/lib/semantic-retrieval.sh

@@ -14,7 +14,8 @@ test_semantic_retrieval_device() {
   local root=$1 home_path=$2 summary=${3:-false}
   local arguments=("$root/scripts/lib/semantic-retrieval.py" benchmark --root "$root" --home "$home_path")
   [ "$summary" != true ] || arguments+=(--summary)
-  if python3 "${arguments[@]}" >&2; then return 0; fi
-  [ "$?" -eq 2 ] && return 1
+  local status
+  if python3 "${arguments[@]}" >&2; then return 0; else status=$?; fi
+  [ "$status" -eq 2 ] && return 1
   return 2
 }