Add automated UAT smoke tests

.gitea/scripts/run-uat-smoke.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+: "${UAT_API_ORIGIN:=https://us3q.ranaze.com}"
+: "${UAT_WEB_ORIGIN:=https://ustep3.ranaze.com}"
+
+IMAGE_TAG="step3-uat-smoke:${GITHUB_RUN_ID:-manual}-${GITHUB_RUN_NUMBER:-0}"
+ARTIFACT_DIR="${SMOKE_ARTIFACT_DIR:-artifacts/uat-smoke}"
+ARTIFACT_ABS="$(pwd)/${ARTIFACT_DIR}"
+
+cleanup() {
+  docker image rm "${IMAGE_TAG}" >/dev/null 2>&1 || true
+}
+trap cleanup EXIT
+
+rm -rf "${ARTIFACT_DIR}"
+mkdir -p "${ARTIFACT_DIR}"
+
+docker build -f tests/smoke/Dockerfile -t "${IMAGE_TAG}" tests/smoke
+docker run --rm --ipc=host \
+  -e UAT_API_ORIGIN="${UAT_API_ORIGIN}" \
+  -e UAT_WEB_ORIGIN="${UAT_WEB_ORIGIN}" \
+  -e EXPECTED_REVISION="${EXPECTED_REVISION:-}" \
+  -v "${ARTIFACT_ABS}:/work/test-results" \
+  "${IMAGE_TAG}"