chore: import verified syly2 maintenance baseline without embedded credentials

ops/uat-build/run-build.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euo pipefail
+umask 077
+run_dir="${1:?Usage: run-build.sh RUN_DIRECTORY PHASE}"
+phase="${2:?Missing build phase}"
+case "$phase" in
+  *[!a-zA-Z0-9_-]*|'') printf 'Invalid phase\n' >&2; exit 2 ;;
+esac
+source "$HOME/.local/opt/syly2-build/env.sh"
+mkdir -p "$run_dir/logs" "$HOME/.local/share/syly2-build/m2"
+cd "$run_dir/source"
+set +e
+nice -n 10 timeout 1200 mvn --batch-mode --no-transfer-progress \
+  -Dstyle.color=never \
+  -Dmaven.repo.local="$HOME/.local/share/syly2-build/m2" \
+  -Dmaven.test.skip=true -DskipTests=true \
+  clean package > "$run_dir/logs/$phase.log" 2>&1
+result=$?
+set -e
+printf '%s\n' "$result" > "$run_dir/logs/$phase.exit-code"
+printf 'Build phase %s exited %s; log: %s\n' "$phase" "$result" "$run_dir/logs/$phase.log"
+exit "$result"