wagmi Ledger connect

Problem Statement

Adds ledger's wallet support via device-management-kit libraries to wagmi connector to allow for broaden usage and connection with tools using up-to-date ledger software kit. This enables developers to integrate secure hardware-based signing for transactions, messages, and typed data with modern browser compatibility.

Solution

We enhanced the Wagmi connector to support Ledger hardware wallets, focusing on TypeScript integration and thorough testing with a Ledger Nano S Plus. The implementation uses Ledger’s @ledgerhq/device-management-kit and WebHID for browser-based communication, ensuring seamless interaction with Ledger devices. It supports both EIP-1559 and legacy transactions, includes robust error handling, and provides detailed debugging features to improve the developer experience and reliability of hardware wallet integration in dApps.