Error `ECONNREFUSED` when using offckb independently

[tea2x]

Hi everyone, thank you for your excellent project. Spinning up a CKB node is so easy with offckb.

After offckb node I tried running offckb deploy and offckb transfer independently. They both produces theECONNREFUSED error. For example:

$ offckb deploy --target ./build/sphincsplus_lock --config offckb.config.ts
node:internal/deps/undici/undici:11731
    Error.captureStackTrace(err, this);
          ^

TypeError: fetch failed
    at Object.fetch (node:internal/deps/undici/undici:11731:11)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async TransportHttp.request (/Users/tung/.nvm/versions/node/v18.19.1/lib/node_modules/@offckb/cli/node_modules/@ckb-ccc/core/dist.commonjs/client/transports/http.js:12:28)
    at async ClientPublicTestnet.send (/Users/tung/.nvm/versions/node/v18.19.1/lib/node_modules/@offckb/cli/node_modules/@ckb-ccc/core/dist.commonjs/client/jsonRpc/index.js:254:22)
    at async ClientPublicTestnet.findCellsPagedNoCache (/Users/tung/.nvm/versions/node/v18.19.1/lib/node_modules/@offckb/cli/node_modules/@ckb-ccc/core/dist.commonjs/client/jsonRpc/index.js:225:34)
    at async ClientPublicTestnet.findCellsPaged (/Users/tung/.nvm/versions/node/v18.19.1/lib/node_modules/@offckb/cli/node_modules/@ckb-ccc/core/dist.commonjs/client/client.js:91:21)
    at async ClientPublicTestnet.findCellsOnChain (/Users/tung/.nvm/versions/node/v18.19.1/lib/node_modules/@offckb/cli/node_modules/@ckb-ccc/core/dist.commonjs/client/client.js:98:43)
    at async ClientPublicTestnet.findCells (/Users/tung/.nvm/versions/node/v18.19.1/lib/node_modules/@offckb/cli/node_modules/@ckb-ccc/core/dist.commonjs/client/client.js:121:26)
    at async SignerCkbPrivateKey.getAddressObjs (/Users/tung/.nvm/versions/node/v18.19.1/lib/node_modules/@offckb/cli/node_modules/@ckb-ccc/core/dist.commonjs/signer/ckb/signerCkbPublicKey.js:48:26)
    at async SignerCkbPrivateKey.findCells (/Users/tung/.nvm/versions/node/v18.19.1/lib/node_modules/@offckb/cli/node_modules/@ckb-ccc/core/dist.commonjs/signer/signer/index.js:138:25) {
  cause: Error: connect ECONNREFUSED ::1:8114
      at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1555:16) {
    errno: -61,
    code: 'ECONNREFUSED',
    syscall: 'connect',
    address: '::1',
    port: 8114
  }
}

[RetricSu]

hmm, not sure why this happens but it seems strange to me that it used the address: '::1' ipv6 ? the node should be running in the ipv4 address 127.0.0.1:8114 why does it choose the ipv6