@workflow/world-postgres: ERR_REQUIRE_ESM with Next.js 15

[rajaraodv]

Description

When using @workflow/world-postgres with Next.js 15, the app fails with an ES Module error when trying to start a workflow via workflow/api.

Error

Error: require() of ES Module @workflow/world-postgres/dist/index.js not supported.
Instead change the require() to a dynamic import() which is available in all CommonJS modules.

Environment

• Next.js: 15.5.9
• workflow: 4.0.1-beta.48
• @workflow/world-postgres: 4.1.0-beta.28
• Node.js: 20.x

Steps to Reproduce

1. Create a Next.js 15 app with withWorkflow in next.config.ts
2. Install workflow and @workflow/world-postgres
3. Create an API route that imports from workflow/api:
   import { start } from "workflow/api";