dynamic: node:dns/promises is not shimmed, so node-redis fails on load #434

Summary

The island doesn't provide node:dns/promises. node-redis 6 (@redis/client) requires it at the top of lib/client/enterprise-maintenance-manager.js, which lib/client/index.js loads unconditionally. So importing redis fails as soon as the program starts. node:dns itself is shimmed.

Reproduction

With redis 6.2.1:

import { createClient } from 'redis'

const client = createClient({ url: 'redis://127.0.0.1:6379' })
console.log(client.isOpen)

$ node r.ts
false
$ scriptc build r.ts --dynamic -o r && ./r
Uncaught Error: the island does not provide the 'node:dns/promises' builtin

scriptc coverage --dynamic lists it as node:dns/promises not shimmed — lazy trap (@redis/client) and ends with "builds with --dynamic — no remaining blockers". The require is top-level on the package's own import path, though, so the "lazy" trap fires at load, before any user code runs.

Ask

• Shim node:dns/promises, at least what node:dns already covers (lookup), or
• have coverage tell a trap that fires at load from one that fires only when a lazy call happens.

Environment

scriptc 0.1.4, Ubuntu 26.04 x86_64, Node 24.21.0.