fix(dts-plugin): mark typescript peer dependency optional

[jonahsnider]

Description

@module-federation/dts-plugin defines typescript as a peer dependency, but not an optional one. For users of @module-federation/vite, dts-plugin is always installed along with the 30MB tsc binary (or 50MB for WASM/platform-agnostic).

https://github.com/module-federation/vite/blob/8c58d47c8ef4706e98e9fd12b000242c09d74d34/src/index.ts#L964-L970

The Vite plugin already ignores importing dts-plugin when disabled, but typescript is still installed.

This PR marks typescript as an optional peer dependency, so that users of the Vite plugin don't need to have typescript installed even when they aren't using it for anything.

Related Issue

• Avoid runtime imports of typescript if DtsPlugin is not configured #4271 proposes a different solution for the same problem

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Checklist

• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated the documentation.

[changeset-bot]

🦋 Changeset detected

Latest commit: 5a2d90c

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

This PR includes changesets to release 48 packages

Name	Type
@module-federation/dts-plugin	Patch
@module-federation/cli	Patch
@module-federation/enhanced	Patch
@module-federation/manifest	Patch
@module-federation/metro	Patch
@module-federation/rspack	Patch
@module-federation/modern-js-v3	Patch
@module-federation/modern-js	Patch
@module-federation/nextjs-mf	Patch
@module-federation/node	Patch
@module-federation/rsbuild-plugin	Patch
@module-federation/rspress-plugin	Patch
@module-federation/rstest	Patch
@module-federation/storybook-addon	Patch
shared-tree-shaking-no-server-host	Patch
shared-tree-shaking-no-server-provider	Patch
@module-federation/metro-plugin-rnc-cli	Patch
@module-federation/metro-plugin-rnef	Patch
@module-federation/metro-plugin-rock	Patch
shared-tree-shaking-with-server-host	Patch
shared-tree-shaking-with-server-provider	Patch
node-dynamic-remote-new-version	Patch
node-dynamic-remote	Patch
@module-federation/playground	Patch
remote5	Patch
remote6	Patch
website-new	Patch
@module-federation/devtools	Patch
create-module-federation	Patch
@module-federation/error-codes	Patch
@module-federation/managers	Patch
@module-federation/retry-plugin	Patch
@module-federation/runtime-core	Patch
@module-federation/runtime-tools	Patch
@module-federation/runtime	Patch
@module-federation/sdk	Patch
@module-federation/third-party-dts-extractor	Patch
@module-federation/treeshake-frontend	Patch
@module-federation/treeshake-server	Patch
@module-federation/webpack-bundler-runtime	Patch
@module-federation/bridge-react-webpack-plugin	Patch
@module-federation/bridge-react	Patch
@module-federation/bridge-shared	Patch
@module-federation/bridge-vue3	Patch
@module-federation/inject-external-runtime-core-plugin	Patch
@module-federation/esbuild	Patch
@module-federation/observability-plugin	Patch
@module-federation/utilities	Patch

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[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-02T02:01:04.572349Z	5a2d90c	PR opened

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