Feature/mandate core

[Akshat-Mishra101]

Adds WachAI's Mandate system for Task Verification of ChaosChain Agents

Changes:

• Added MandateIntegration class in Mandate.ts. This class provides high-level wrappers over the core package.

• Added functions for mandate utility in ChaosChainSDK.ts

• Allows enabling mandates from the client sdk.

• Provides utilities for mandate creation, signature verification and canonicalization

• Automatically handles signing logic specific to client and server agents.

Usage:

/**
 * Mandate Integration Usage Example
 * Demonstrates creating, signing, and verifying mandates with CAIP-10 identities
 */

import { ChaosChainSDK, NetworkConfig, AgentRole } from '@chaoschain/sdk';
import type { MandateCreateParams } from '@chaoschain/sdk';
import * as dotenv from 'dotenv';

dotenv.config();

async function main() {
  // Initialize SDK with mandate integration enabled (enabled by default)
  const sdk = new ChaosChainSDK({
    agentName: 'ServiceAgent',
    agentDomain: 'service.example.com',
    agentRole: AgentRole.SERVER,
    network: NetworkConfig.BASE_SEPOLIA,
    privateKey: process.env.PRIVATE_KEY,
    enableMandate: true, // Optional: enabled by default
  });


  // 1. Create a mandate with CAIP-10 identities
  console.log('Creating mandate.');
  const clientAddress = '0x1234567890abcdef1234567890abcdef12345678';
  const serverAddress = sdk.getAddress();
  const chainId = 84532; // Base Sepolia

  const mandateParams: MandateCreateParams = {
    client: `eip155:${chainId}:${clientAddress}`,
    server: `eip155:${chainId}:${serverAddress}`,
    intent: 'AI service agreement',
    deadline: new Date(Date.now() + 60 * 60 * 1000).toISOString(), // 1 hour from now
    core: {
      kind: 'serviceAgreement',
      payload: {
        service: 'ai-inference',
        model: 'gpt-4',
        price: '10 USDC',
        duration: '1 hour',
      },
    },
    version: '0.1.0',
  };

  const creationResult = sdk.createMandate(mandateParams);
  
  if (!creationResult.success) {
    throw new Error(`Failed to create mandate: ${creationResult.error}`);
  }

  console.log('Mandate created');
  console.log(`Mandate ID: ${creationResult.mandate?.mandateId}`);
  console.log(`Mandate Hash: ${creationResult.mandateHash}`);


}

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error('Error:', error);
    process.exit(1);
  });