Migrating from nuxt-toc 2.x

v2.x	v3.0.0
Content v2 only	Content v2 or v3
Internal CustomQuery	Version-specific plugins
Config key loosely nuxt-toc	nuxtToc
Heavy blog playground	Dual minimal playgrounds

Update config:

export default defineNuxtConfig({
  modules: ['nuxt-toc', '@nuxt/content'],
  nuxtToc: {
    collection: 'content', // v3
  },
})

Prefer :toc="page.body?.toc"; auto-fetch still works when Content is installed.