fix: print and serve multiple environments html route correctly

[9aoy]

Summary

print and serve multiple environments html route correctly in basic case.

When we need to serve multiple environment products, rsbuild server can run correctly in the following case:

export default defineConfig({
  plugins: [pluginReact()],
  environments: {
    web: {},
    web1: {
      dev: {
        // assetPrefix is necessary when generating multiple environment web products, file search conflicts will occur if assetPrefix is ​​not added.
        assetPrefix: 'auto',
      },
      source: {
        entry: {
          main: './src/web1.tsx',
        },
      },
      output: {
        distPath: {
          root: 'dist/web1',
        },
      },
    },
  },
});

At this point, the print url is as follows:

  - index    http://localhost:3000/
  - main     http://localhost:3000/web1/main

Warning: not support serve multiply environments when distPath is different (non-inclusive relationship), such as, distPath.root: 'dist' in environment web and distPath.root: 'dist1' in environment web1

Related Links

#2620

Checklist

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

[netlify]

✅ Deploy Preview for rsbuild ready!

Name	Link
🔨 Latest commit	1151b60
🔍 Latest deploy log	https://app.netlify.com/sites/rsbuild/deploys/667d172bf3927f0008a50bf8
😎 Deploy Preview	https://deploy-preview-2713--rsbuild.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 77 (🔴 down 11 from production) Accessibility: 97 (no change from production) Best Practices: 100 (no change from production) SEO: 92 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.