fix: move @types/readable-stream to dependencies

[ZayanKhan-12]

Explanation

Moves @types/readable-stream from devDependencies to dependencies.

The type declarations this package publishes to dist/ reference types from readable-stream (e.g. Duplex in ObjectMultiplex.d.ts and Substream.d.ts), and src/readable-stream.d.ts augments the readable-stream module. Since readable-stream@^3 ships no types of its own, these declarations only resolve through @types/readable-stream — so TypeScript consumers are currently forced to add it as their own dependency (see e.g. MetaMask/swaps-controller#333).

No yarn.lock change is needed: Yarn v1 lockfiles don't record dependency groups, and yarn install --frozen-lockfile passes unchanged.

References

Fixes#58

Changelog

Fixed

• TypeScript consumers no longer need to install @types/readable-stream themselves: it is now a runtime dependency, since the published type declarations reference it

Checklist

• I've updated the test suite for new or updated code as appropriate (no code change — yarn build and node test pass, 8/8)
• I've updated documentation for new or updated code as appropriate (N/A)
• I've highlighted breaking changes using the "BREAKING" category above as appropriate (none)

🤖 Generated with Claude Code

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Note

Low Risk
Packaging-only change with no application logic; slightly increases install footprint for non-TypeScript users.

Overview
Moves @types/readable-stream from devDependencies to dependencies so it installs with the package.

Published dist/*.d.ts and src/readable-stream.d.ts rely on those types because readable-stream@^3 does not ship its own. Without this, TypeScript consumers had to add @types/readable-stream themselves.

No runtime or source changes—only package.json.

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