exclude-internal-type-declarations.md

@primer/react-brand	minor

⚠️ Changes to the files listed in the package: lib/ (UMD) and esm/ (ESM) bundles now ship a clean, filtered list of React modules and type declarations (everything exported from index.ts). Internal-only modules that were never intended for the package like recipes/ and Storybook test fixtures/ — are no longer included:

- @primer/react-brand/esm/recipes/**
- @primer/react-brand/{lib,esm}/**/fixtures/**
- @primer/react-brand/{lib,esm}/**/*.fixtures.d.ts