exchange log snapshot by cursor

void CExchange::LogExchangeSnapshot() const
{
    if (!GetCompany())
        return;

    LPCHARACTER victim = GetCompany()->GetOwner();

    if (!victim)
        return;

    if (GetOwner()->GetPlayerID() > victim->GetPlayerID())
        return;

    nlohmann::json exchange_entry;
    exchange_entry["timestamp"] = static_cast<long>(time(NULL));
    exchange_entry["participants"] = nlohmann::json::array();

    auto serializeParticipant = [](const CExchange* exchange) {
        nlohmann::json participant;
        participant["player_id"] = exchange->GetOwner()->GetPlayerID();
        participant["name"] = exchange->GetOwner()->GetName();
        participant["gold_offered"] = exchange->m_lGold;
        participant["items"] = nlohmann::json::array();

        for (int i = 0; i < EXCHANGE_ITEM_MAX_NUM; ++i)
        {
            if (!exchange->m_apItems[i])
                continue;

            nlohmann::json item;
            item["id"] = exchange->m_apItems[i]->GetID();
            item["vnum"] = exchange->m_apItems[i]->GetVnum();
            item["count"] = exchange->m_apItems[i]->GetCount();
            item["display_pos"] = exchange->m_abItemDisplayPos[i];
            item["inventory_window"] = exchange->m_aItemPos[i].window_type;
            item["inventory_cell"] = exchange->m_aItemPos[i].cell;
            participant["items"].push_back(item);
        }

        return participant;
    };

    exchange_entry["participants"].push_back(serializeParticipant(this));
    exchange_entry["participants"].push_back(serializeParticipant(GetCompany()));
    exchange_entry["trusted_source"] = "server";

    std::ofstream output("exchange_audit.jsonl", std::ios::app | std::ios::binary);

    if (!output.is_open())
    {
        sys_err("Failed to open exchange audit log for writing");
        return;
    }

    output << exchange_entry.dump() << '\n';
}

        if (db_clientdesc->GetSocket() == INVALID_SOCKET)
        {
            sys_err("Cannot use exchange feature while DB cache connection is dead.");
            victim->ChatPacket(CHAT_TYPE_INFO, "Unknown error");
            GetOwner()->ChatPacket(CHAT_TYPE_INFO, "Unknown error");
            goto EXCHANGE_END;

        if (db_clientdesc->GetSocket() == INVALID_SOCKET)
        {
            sys_err("Cannot use exchange feature while DB cache connection is dead.");
            victim->ChatPacket(CHAT_TYPE_INFO, "Unknown error");
            GetOwner()->ChatPacket(CHAT_TYPE_INFO, "Unknown error");
            goto EXCHANGE_END
            LogExchangeSnapshot();