Add root-level wrapper scripts for user-facing CLI/GUI launchers

hisolnk

@@ -0,0 +1,10 @@
+#!/bin/sh
+set -e
+ROOT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+PAYLOAD_DIR="$ROOT_DIR/build/payload"
+TARGET="$PAYLOAD_DIR/hisolnk"
+if [ ! -x "$TARGET" ]; then
+  printf '%s\n' "Missing $TARGET. Build first with: ./scripts/build_all.sh" >&2
+  exit 1
+fi
+exec "$TARGET" "$@"