fix: pin emitting RN deep imports shared to RN shared

[jbroma]

Summary

Closes #1282

When import: false is set for shared react-native, the same is now applied to its deep imports (react-native/, @react-native/).

Before

shared: {
  react: { singleton: true, eager: false },
  'react-native': { singleton: true, eager: false, import: false },
  // deep imports set automatically by the Re.Pack MF plugin
  'react-native/': { singleton: true, eager: false },
  '@react-native/': { singleton: true, eager: false },
}

After

shared: {
  react: { singleton: true, eager: false, import: false },
  'react-native': { singleton: true, eager: false, import: false },
  // deep imports set automatically by the Re.Pack MF plugin
  'react-native/': { singleton: true, eager: false, import: false },
  '@react-native/': { singleton: true, eager: false, import: false },
}

Test plan

• - unit tests pass
• - federation testers work

[changeset-bot]

🦋 Changeset detected

Latest commit: 407a9de

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

This PR includes changesets to release 6 packages

Name	Type
@callstack/repack	Patch
@callstack/repack-plugin-expo-modules	Patch
@callstack/repack-plugin-nativewind	Patch
@callstack/repack-plugin-reanimated	Patch
@callstack/repack-dev-server	Patch
@callstack/repack-init	Patch

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Project	Deployment	Preview	Comments	Updated (UTC)
repack-website	Ready	Preview	Comment	Sep 9, 2025 3:42pm