feat(P25-1/P25-5/P26-1/P26-3/P24-1/P29-4): 落地内部OA够用版后端与试运行能力

关联 Issue: P25-1, P25-2, P25-3, P25-4, P25-5, P26-1, P26-3, P24-1, P24-2, P29-1, P29-2, P29-3, P29-4

server/scripts/regression-ocr.sh

@@ -9,12 +9,9 @@ if ! command -v node >/dev/null 2>&1; then
   exit 1
 fi
 
-if [[ -z "${DATABASE_URL:-}" && -f ".env" ]]; then
-  set -a
-  # shellcheck disable=SC1091
-  source .env
-  set +a
-fi
+# shellcheck source=scripts/lib/load-env-defaults.sh
+source "$ROOT_DIR/scripts/lib/load-env-defaults.sh"
+load_env_defaults ".env"
 
 if [[ -z "${DATABASE_URL:-}" ]]; then
   echo "[ERROR] DATABASE_URL is required (export it or provide server/.env)" >&2