TypeScript SDK: consistent naming, types, and calls.

import currencyExchangeClient from "@pontx/frankfurter";

const result = await currencyExchangeClient.exchangeRates.getLatestRates({
  base: "USD",
  symbols: "JPY,CNY"
});

import { createMassiveClient } from "@pontx/massive";

const client = createMassiveClient({
  apiKey: process.env.MASSIVE_API_KEY!
});
const result = await client.common.getPreviousClose("AAPL", {});

import { Dida365OAuthClient } from "@pontx/dida365";

const client = new Dida365OAuthClient({
  client_id: process.env.DIDA365_CLIENT_ID!,
  client_secret: process.env.DIDA365_CLIENT_SECRET!
});
await client.authenticate();