feat: Improve wallet management with encrypted backup, password resto…

[pranavkonde]

Wallet Management Enhancements

Overview

Added New wallet management features to improve user experience and wallet security.

New Features

1. Wallet Backup

   • Creates encrypted backups of wallet configuration
   • Stores backups in a dedicated wallet-backups directory
   • Includes wallet address, network info, and backup timestamp

2. Wallet Restore

   • Restores wallet from backup file
   • Verifies backup integrity with password
   • Restores all wallet configuration settings

3. Enhanced Wallet Information

   • Displays comprehensive wallet details
   • Shows data usage statistics
   • Lists available backups
   • Displays token balances for supported networks

Technical Details

• Added new wallet-management.ts module
• Integrated with existing wallet and API key system
• Improved error handling and user feedback
• Added type safety with TypeScript interfaces

Usage

# Create wallet backup
lighthouse-web3 wallet-backup

# Restore from backup
lighthouse-web3 wallet-restore <backup-file-path>

# View wallet information
lighthouse-web3 wallet-info