fix: support Bun child process channels

[aidenybai]

Summary

• guard child-process IPC ref/unref calls for Bun runtimes whose channel omits those Node methods
• keep Node behavior unchanged when both methods are available
• add focused regression coverage for channels with methods, Bun-compatible channels without methods, and absent channels

Closes #1815.

Validation

• focused core regression: 3 tests passed
• nr typecheck
• nr lint
• nr format:check

Release

Includes a patch changeset for react-doctor. No GitHub Action files or Action release surfaces are changed.

  

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/eslint-plugin-react-doctor@1819

npm i https://pkg.pr.new/oxlint-plugin-react-doctor@1819

npm i https://pkg.pr.new/react-doctor@1819

commit: df3d458

[github-actions]

React Doctor skipped this pull request — it changed no React files.

_{Reviewed by React Doctor for commit df3d458.}

[github-actions]

Interactive terminal E2E

Terminal Control verified the built CLI at df3d458 in a real PTY:

• selected a project interactively and observed Scanning... before the three-second Git delay completed
• waited for the clean result and exercised the compact report
• opened copy context and the GitHub Actions confirmation, then cancelled safely

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