* SearchHelper applies role-based access control filtering through
     * SearchRequestType.JSON and the role filter mechanism, ensuring
     * users only see documents they are authorized to access.
     * <p>
     * This is the primary extension point for subclasses to customize search behavior.
     *
     * @param query the search query
     * @param fields the field filters (e.g., label)

		Description:    "The service is unavailable. Please retry.",
		HTTPStatusCode: http.StatusServiceUnavailable,
	},
	ErrUnauthorizedAccess: {
		Code:           "UnauthorizedAccess",
		Description:    "You are not authorized to perform this operation",
		HTTPStatusCode: http.StatusUnauthorized,
	},
	ErrExpressionTooLong: {
		Code:           "ExpressionTooLong",