Update 25: TypeScript SDK for the public API

Developers can now use a ready-made TypeScript library to talk to the Lemniscate API instead of writing requests by hand. It knows the shape of every answer, turns errors into clear messages, respects the API's request allowance and can follow live prices. It only reads data and prepares transactions for you to sign; it never touches your keys, and before returning a transaction it checks that it targets the Lemniscate contracts. It is not published on npm: install it from the sdk/ folder of the public GitHub repository. Any npm package claiming to be it is not ours.