feat: add lit plugin

[dezcalimese]

Relates to

Lit Protocol Integration for ElizaOS

Risks

Medium

• Handles cryptocurrency transactions and wallet management
• Manages private keys and sensitive configuration data
• Interacts with blockchain networks

Background

What does this PR do?

Introduces the @elizaos/plugin-lit package, which provides comprehensive blockchain interaction capabilities powered by Lit Protocol's Programmable Key Pairs (PKPs). The plugin enables:

1. Dual-chain wallet management (EVM + Solana)
2. Secure transaction signing and execution
3. Automated PKP lifecycle management
4. Capacity credit management for rate limiting
5. Transaction security validations

What kind of change is this?

Features (non-breaking change which adds functionality)

Documentation changes needed?

Documentation has been provided in the form of:

• README.md with comprehensive usage instructions
• PKP setup guide (pkp-setup.md)
• Code documentation and type definitions

Testing

Where should a reviewer start?

1. Review the main plugin entry point: src/index.ts
2. Examine the core actions:

• sendEth.ts
• sendSol.ts
• sendUSDC.ts

3. Check the Lit Provider implementation: src/providers/litProvider.ts

Detailed testing steps

1. Install the package

pnpm add @elizaos/plugin-lit

3. Configure environment variables

FUNDING_PRIVATE_KEY=   # Private key for funding operations
EVM_RPC_URL=          # RPC endpoint for blockchain interactions
LIT_PKP_PUBLIC_KEY=   # (Optional) Existing PKP public key

4. Test basic functionality

import { litPlugin } from '@elizaos/plugin-lit';

// Register plugin
runtime.registerPlugin(litPlugin);

// Test ETH transfer
await runtime.executeAction('SEND_ETH', {
  text: "Send 0.01 ETH to 0x742d35Cc6634C0532925a3b844Bc454e4438f44e"
});

The plugin requires proper configuration of:

• lit-config.json (automatically generated)
• Environment variables
• Network RPC endpoints

None - Configuration is file-based using lit-config.json

1. Ensure proper environment variables are set
2. Deploy with proper security measures for lit-config.json
3. Monitor initial PKP creation and capacity credit allocation
4. Verify wallet funding for transaction execution

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[github-actions]

Hi @dezcalimese! Welcome to the elizaOS community. Thanks for submitting your first pull request; your efforts are helping us accelerate towards AGI. We'll review it shortly. You are now an elizaOS contributor!