add: devops scripts and configs

devops/11_yaml_stability_run_latest.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT_DIR="${ROOT_DIR:-$(cd "${SCRIPT_DIR}/.." && pwd)}"
+TOKEN_FILE="${TOKEN_FILE:-}"
+
+if [[ -z "$TOKEN_FILE" ]]; then
+  TOKEN_FILE=$(ls -t "${ROOT_DIR}"/*.token 2>/dev/null | head -n 1 || true)
+fi
+
+if [[ -z "$TOKEN_FILE" || ! -f "$TOKEN_FILE" ]]; then
+  echo "Error: token file not found in ${ROOT_DIR}" >&2
+  exit 2
+fi
+
+export TOKEN_FILE
+exec "${ROOT_DIR}/devops/10_yaml_stability_run.sh"