Connect Wallet

// 1. Cek apakah MetaMask ada
if (window.ethereum) {

  // 2. Minta izin connect ke wallet
  const accounts = await window.ethereum
    .request({
      method: 'eth_requestAccounts'
    });

  // 3. Ambil alamat wallet
  const address = accounts[0];

  // 4. Ambil saldo
  const balance = await window.ethereum
    .request({
      method: 'eth_getBalance',
      params: [address, 'latest']
    });

  // 5. Tampilkan ke user!
  console.log("Connected!", address);
}