Remove PointerBox from @primer-react

[pksjce]

Closes #https://github.com/github/primer/issues/5536

Changelog

New

Changed

Removed

Rollout strategy

• Patch release
• Minor release
• Major release; if selected, include a written rollout or migration plan
• None; if selected, include a brief description as to why

Testing & Reviewing

Merge checklist

• Added/updated tests
• Added/updated documentation
• Added/updated previews (Storybook)
• Changes are SSR compatible
• Tested in Chrome
• Tested in Firefox
• Tested in Safari
• Tested in Edge
• (GitHub staff only) Integration tests pass at github/github (Learn more about how to run integration tests)

[changeset-bot]

🦋 Changeset detected

Latest commit: 0160b5c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@primer/react	Major
@primer/styled-react	Major

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[github-actions]

👋 Hi, this pull request contains changes to the source code that github/github depends on. If you are GitHub staff, we recommend testing these changes with github/github using the integration workflow. Thanks!

[Copilot]

Pull Request Overview

This PR removes the deprecated PointerBox component from the @primer/react package as part of the major release cleanup. The PointerBox was previously deprecated in v38.0.0 and is now being completely removed.

• Complete removal of PointerBox component including implementation, tests, stories, and documentation
• Updates to export files and test snapshots to reflect the component removal
• Documentation updates to remove references to PointerBox

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/react/src/index.ts	Removes PointerBox exports from main package exports
packages/react/src/deprecated/index.ts	Removes PointerBox exports from deprecated exports
packages/react/src/tests/snapshots/exports.test.ts.snap	Updates test snapshots to reflect removed exports
packages/react/src/PointerBox/index.ts	Deletes the PointerBox index file
packages/react/src/PointerBox/PointerBox.tsx	Deletes the main PointerBox component implementation
packages/react/src/PointerBox/PointerBox.test.tsx	Deletes PointerBox unit tests
packages/react/src/PointerBox/PointerBox.stories.tsx	Deletes PointerBox Storybook stories
packages/react/src/PointerBox/PointerBox.docs.json	Deletes PointerBox documentation metadata
packages/react/script/react-compiler.mjs	Removes PointerBox from React compiler unsupported files list
contributor-docs/behaviors.md	Updates documentation to remove PointerBox reference