Verifiable credential exports

import { exportAuditAsVC, listAuditRecords } from 'kavachos/vc';
import { generateDidKey } from 'kavachos/did';
import { createVCVerifier } from 'kavachos/vc';

// Generate or load your issuer keypair
const keyPair = await generateDidKey();

// Fetch audit records for the period you want to export
const records = await kavach.audit.query({
  since: new Date('2025-01-01'),
  until: new Date('2025-03-31'),
});

// Export as individual JSON-LD credentials
const result = await exportAuditAsVC({
  since: new Date('2025-01-01'),
  until: new Date('2025-03-31'),
  issuerDid: keyPair.did,
  issuerConfig: {
    issuerDid: keyPair.did,
    privateKeyJwk: keyPair.privateKeyJwk,
    publicKeyJwk: keyPair.publicKeyJwk,
  },
  records,
});

console.log(`Exported ${result.count} credentials`);
console.log(JSON.stringify(result.credentials[0], null, 2));

// Verify any credential independently
const verifier = createVCVerifier({
  resolveDidKey: async () => keyPair.publicKeyJwk,
});

const verified = await verifier.verifyCredential(
  result.credentials[0],
  keyPair.publicKeyJwk,
);

console.log(verified.success); // true

// JWT format
const jwtResult = await exportAuditAsVC({
  ...options,
  format: 'jwt_vc',
});

for (const jwt of jwtResult.jwts ?? []) {
  const verified = await verifier.verifyCredential(jwt, keyPair.publicKeyJwk);
  console.log(verified.success);
}

const vpResult = await exportAuditAsVC({
  ...options,
  output: 'presentation',
});

const vp = vpResult.presentation;
// vp.verifiableCredential contains all 20 credentials
// vp.proof is a JsonWebSignature2020 over the whole presentation

const vpVerified = await verifier.verifyPresentation(vp, keyPair.publicKeyJwk);
console.log(vpVerified.success); // true

const denyExport = await exportAuditAsVC({
  ...options,
  filter: (r) => r.result === 'denied',
});