Update ts/sdk README with comprehensive documentation and fix example bug

[Copilot]

The TypeScript SDK README contained incorrect package names, missing usage examples, and lacked documentation for key SDK features.

Changes

README.md (ts/sdk)

• Fixed package name: @bluefin/api-client → @bluefin-exchange/pro-sdk
• Added quick start with SDK initialization and authentication
• Added examples for:
  • Market data retrieval (tickers, orderbooks, trades)
  • Order placement with complete parameter documentation
  • Account information queries
  • WebSocket streams (market and account data)
  • Advanced features (deposits, withdrawals, leverage management, rewards)
• Documented environment configuration (mainnet/testnet/devnet)
• Added build and development instructions

example.ts

• Fixed method call: suiWallet.toSuiAddress() → suiWallet.getPublicKey().toSuiAddress()

Example Usage

import { BluefinProSdk, BluefinRequestSigner, makeSigner } from "@bluefin-exchange/pro-sdk";
import { SuiClient, Ed25519Keypair } from "@firefly-exchange/library-sui";

const wallet = Ed25519Keypair.fromSecretKey(hexToBytes("YOUR_KEY"));
const signer = new BluefinRequestSigner(makeSigner(wallet, false));
const client = new BluefinProSdk(
  signer,
  "mainnet",
  new SuiClient({ url: "https://fullnode.mainnet.sui.io:443" })
);

await client.initialize();

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