L11_TODO_4

{wallets.map((w) => (
  <div key={w.address}>
    <b>{w.label}</b> {short(w.address)} — Balance:{" "}
    {balances[w.address] || 0}{" "}
    <input
      type="radio"
      name="miner"
      checked={minerAddr === w.address}
      onChange={() => setMinerAddr(w.address)}
    />{" "}
    Miner
  </div>
))}

<button onClick={handleAddWallet}>➕ Create Wallet</button>