Trade history polling

curl -s http://127.0.0.1:8080/v1/sellers/SELLER_ID/trades \
  -H "X-Seller-API-Key: sk-seller"

use token_gateway_sdk::{RegisterSellerRequest, SellerClient, SellerKey};

let mut client = SellerClient::new("http://127.0.0.1:8080", None);
let registered = client
    .register(&RegisterSellerRequest {
        name: "acme".into(),
        endpoint_url: "http://127.0.0.1:9000/infer".into(),
        supported_models: vec!["gpt-4".into()],
        api_key: "sk-seller".into(),
    })
    .await?;
client.set_key(SellerKey(registered.api_key.clone()));
let history = client.list_trades(registered.seller_id).await?;
let _ = history.trades.len();

from token_gateway import SellerTokenGateway

gw = SellerTokenGateway("http://127.0.0.1:8080")
seller = gw.register_seller(name="acme", endpoint_url="http://127.0.0.1:9000/infer", supported_models=["gpt-4"], api_key="sk-seller")
print(gw.list_trades(seller.seller_id))

import { SellerClient } from "@ai-token-gateway/sdk";

const seller = new SellerClient({ baseUrl: "http://127.0.0.1:8080" });
const registered = await seller.register({
  name: "acme",
  endpoint_url: "http://127.0.0.1:9000/infer",
  supported_models: ["gpt-4"],
  api_key: "sk-seller",
});
seller.setApiKey(registered.api_key);
console.log(await seller.listTrades(registered.seller_id));