from typing import List, Optional


def main(argv: Optional[List[str]] = None) -> int:
    """CLI wrapper that delegates to scripts.mindmodel.validator.main.

    Returns the integer exit code from the delegated main. If the
    validator module is not available or raises, return a non-zero
    exit code.
    """
    try:
        # Import here to avoid side-effects on module import
        from scripts.mindmodel import validator

        # Call the validator.main if present
        if hasattr(validator, "main"):
            result = validator.main(argv)
            # Ensure we return an int
            try:
                return int(result)  # type: ignore
            except Exception:
                return 1
        else:
            return 2
    except Exception:
        # Import error or runtime error — return non-zero so callers
        # can detect failure (tests expect non-zero on missing manifest)
        return 2


if __name__ == "__main__":
    raise SystemExit(main())