Adds release test scripts

run.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+#
+# Build an LTS DEB package for Ubuntu 26.04
+# Migrated from jenkins_builder.sh (openSUSE) to Ubuntu/DEB ecosystem
+#
+# Required environment (set by the Jenkinsfile or `docker run -e ...`):
+export PROJECT=guez
+export OS_VERSION=u26.04
+export LTS_VERSION=1.0
+export GUEZ_MODE=ON
+export WORKSPACE=/home/torsten/sandbox/qt6-migration-pipeline/
+export PROJECT_BASE_DIR=/home/torsten/sandbox/release