Fix handling of rejected promises when attempting to close the server

[Codex-]

Current:

function bail(e?: Error) {
  try {
    returnserver.close();
  } catch (err) {
    console.warn('unable to close vite server');
  }

  throw e;
}

If this call to server.close() throws, then it does not get caught by the catch here as the promise is not awaited. For this catch to handle the rejection of this promise, the server.close() call needs to be awaited

[IanVS]

Thanks!