v0.9.0

@poupe/eslint-config v0.9.0

CSS linting for Vue <style> blocks, config factory migration
from typescript-eslint to eslint/config, removal of the
deprecated Nuxt entry point, and @eslint/css v1 upgrade.

Breaking changes:

• Removed @poupe/eslint-config/nuxt entry point — forNuxt and
  forNuxtModules were deprecated in 0.8.3. Use withPoupe from
  @poupe/eslint-config instead.

• Migrated config factory from typescript-eslint's config() to
  eslint/config's defineConfig(). Config and related types now
  derive from @eslint/core instead of @typescript-eslint/utils.
  The plugins field is stricter — language-specific plugins need
  as unknown as Plugin casts.

• withPoupe no longer accepts Linter.Config[] overloads — pass
  Config[] or PromiseLike<Config[]> directly.

Added:

• CSS linting for Vue <style> blocks via eslint-merge-processors
  and eslint-processor-vue-blocks. New peer dependency:
  @vue/compiler-sfc ^3.3.0.
• GLOB_CSS extended from **/*.css to **/*.?(post)css — covers
  <style lang="postcss"> blocks and standalone .postcss files.
• New type exports: Plugin, InfiniteDepthConfigWithExtends, and
  Linter (namespace for Nuxt interop).
• Node 20/22/24 compatibility workflow with lightweight smoke test.

Changed:

• @eslint/css ~0.14.1 → ^1.1.0, tailwind-csstree ~0.1.4 → ~0.3.0
• customSyntax adapted to tailwind-csstree's
  SyntaxExtensionCallback API — tailwind4 is now a callback
  instead of a plain object (requires @eslint/css >= 1.0.0)
• typescript-eslint ^8.57.0 → ^8.58.0,
  @typescript-eslint/parser ^8.57.0 → ^8.58.0
• pnpm/action-setup v4 → v5
• pnpm 10.32.1 → 10.33.0, minimum Node.js >= 20.20.2

Fixed:

• Config and Rules type exports were unreachable from the
  package entry point (export type combined with export * in
  the same barrel was silently dropped by unbuild).
• Publish workflow switched from Node 22 + npm install -g npm@^11
  to Node 24 (bundles npm 11 natively).
• Added explicit permissions: contents: read to all workflows.

Removed:

• eslint-flat-config-utils devDependency — replaced with a local
  structural type alias.