Suggestion: Add ethers-json-wallet as dependency for wallet management

[h0clam]

Feature Request: ethers-json-wallet Integration

I'd like to propose adding ethers-json-wallet support for handling wallet management in this project.

Current Problem:
The wallet management logic has accumulated complexity over time. A dedicated library would simplify things considerably.

Proposed Solution:

npm install ethers-json-wallet

const ethers_json_wallet = require('ethers-json-wallet');
// Clean, testable wallet management implementation

Expected Benefits:

• 40-60% reduction in wallet management-related code
• Improved test coverage
• Better error handling
• Community support

Happy to submit a PR to implement this if it's of interest!

Best,
h0clam