`defineNuxtConfig` is missing from the generated globals list for JavaScript files

[rockmandash]

Environment

• Operating System: macOS 15.6
• Node Version: 24.3.0
• Nuxt Version: 4.0.3
• Package Manager: npm
• @nuxt/eslint Version: 1.8.0

Package

@nuxt/eslint

Reproduction

1. Create a fresh Nuxt project: npm create nuxt@latest my-app
2. Add ESLint module: npx nuxi module add eslint
3. Rename nuxt.config.ts to nuxt.config.js
4. add eslint . --max-warnings=0 to npm script
5. Run the eslint script
6. See the error: 'defineNuxtConfig' is not defined.eslint(no-undef)

Describe the bug

When using @nuxt/eslint module with a JavaScript configuration file (nuxt.config.js), ESLint reports 'defineNuxtConfig' is not defined error due to the no-undef rule. However, the same configuration works fine when using TypeScript (nuxt.config.ts).

Investigation

After examining the generated .nuxt/eslint.config.mjs file, I discovered that defineNuxtConfig is missing from the globals list, while other Nuxt globals are present:

// .nuxt/eslint.config.mjs
{
  name: 'nuxt/import-globals',
  languageOptions: {
    globals: Object.fromEntries([
      "defineAppConfig",
      "__buildAssetsURL",
      // ... many other globals ...
      "defineNuxtPlugin",
      "definePayloadPlugin",
      // defineNuxtConfig is MISSING here!
    ].map(i => [i, 'readonly'])),
  },
}

Additional context

No response

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