feat: export Rspack and Rsbuild

[Timeless0911]

Summary

Make developers convenient to import rspack instance and related Rsbuild public APIs and types in Rslib configuration files.

import { defineConfig, rsbuild, rspack } from '@rslib/core';

type EnvironmentContext = rsbuild.EnvironmentContext;
const PLUGIN_SWC_NAME = rsbuild.PLUGIN_SWC_NAME;

export default defineConfig({
  lib: [
    {
      format: 'esm',
      tools: {
        rspack: {
          plugins: [new rspack.CircularDependencyRspackPlugin({})],
        },
      },
    },
  ],
});

Related Links

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).