Addon-Docs: Add React as optimizeDeps entry

[valentinpalkovic]

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What I did

Checklist for Contributors

Testing

The changes in this PR are covered in the following automated tests:

• stories
• unit tests
• integration tests
• end-to-end tests

Manual testing

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This section is mandatory for all contributions. If you believe no manual test is necessary, please state so explicitly. Thanks!

Documentation

• Add or update documentation reflecting your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Checklist for Maintainers

• When this PR is ready for testing, make sure to add ci:normal, ci:merged or ci:daily GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found in code/lib/cli-storybook/src/sandbox-templates.ts

• Make sure this PR contains one of the labels below:

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  • bug: Internal changes that fixes incorrect behavior.
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  • dependencies: Upgrading (sometimes downgrading) dependencies.
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🦋 Canary release

This pull request has been released as version 0.0.0-pr-34176-sha-e53219d4. Try it out in a new sandbox by running npx storybook@0.0.0-pr-34176-sha-e53219d4 sandbox or in an existing project with npx storybook@0.0.0-pr-34176-sha-e53219d4 upgrade.

More information

Published version	0.0.0-pr-34176-sha-e53219d4
Triggered by	@valentinpalkovic
Repository	storybookjs/storybook
Branch	valentin/add-react-as-optimize-deps-to-addon-docs
Commit	e53219d4
Datetime	Tue Mar 17 09:53:10 UTC 2026 (1773741190)
Workflow run	23188360010

To request a new release of this pull request, mention the @storybookjs/core team.

core team members can create a new canary release here or locally with gh workflow run --repo storybookjs/storybook publish.yml --field pr=34176

Summary by CodeRabbit

Release Notes

• Chores
  • Enhanced dependency optimization to improve build performance.

[github-actions]

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☁️ Nx Cloud last updated this comment at 2026-03-17 10:04:13 UTC

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

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Run ID: 48403f75-0416-402a-ad09-e61fe7d908c8

📥 Commits

Reviewing files that changed from the base of the PR and between 546aece and e53219d.

📒 Files selected for processing (1)

• code/addons/docs/src/preset.ts

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📝 Walkthrough

Walkthrough

Added 'react' to the optimizeViteDeps array in the docs addon Vite preset configuration. This is a single-line additive change that includes React in Vite's dependency optimization list without altering existing behavior.

Changes

Cohort / File(s)	Summary
Vite Optimization Configuration code/addons/docs/src/preset.ts	Added 'react' to the optimizeViteDeps array for Vite dependency optimization in the docs addon preset.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• storybookjs/storybook#32798 — Also modifies optimizeViteDeps in the same preset file but adds '@storybook/addon-docs/blocks' dependency.
• storybookjs/storybook#33875 — Adds multiple React-related dependencies to optimizeViteDeps arrays across different preset files.

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📝 Coding Plan

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