Tanstack: Optimize tanstack react-store

[huang-julien]

Closes #

What I did

Add tanstack react state to the optimizeDeps list.
This should fix the issue with storybook not loading for tanstack router SPA

cc @kylegach

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

• npx @tanstack/cli create --router-only
• npm create storybook@10.2
• npx storybook@0.0.0-pr-34718-sha-1881de66 upgrade
  • replac the vrsion b thee canary bellow

Caution

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:

  Available labels

  • bug: Internal changes that fixes incorrect behavior.
  • maintenance: User-facing maintenance tasks.
  • dependencies: Upgrading (sometimes downgrading) dependencies.
  • build: Internal-facing build tooling & test updates. Will not show up in release changelog.
  • cleanup: Minor cleanup style change. Will not show up in release changelog.
  • documentation: Documentation only changes. Will not show up in release changelog.
  • feature request: Introducing a new feature.
  • BREAKING CHANGE: Changes that break compatibility in some way with current major version.
  • other: Changes that don't fit in the above categories.

🦋 Canary release

This pull request has been released as version 0.0.0-pr-34731-sha-64cea9fe. Try it out in a new sandbox by running npx storybook@0.0.0-pr-34731-sha-64cea9fe sandbox or in an existing project with npx storybook@0.0.0-pr-34731-sha-64cea9fe upgrade.

More information

Published version	0.0.0-pr-34731-sha-64cea9fe
Triggered by	@huang-julien
Repository	storybookjs/storybook
Branch	fix/tanstack_deps_optimize
Commit	64cea9fe
Datetime	Wed May 6 16:38:40 UTC 2026 (1778085520)
Workflow run	25448329633

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=34731

Summary by CodeRabbit

• New Features
  • Enhanced Vite optimization configuration for the TanStack React preset, improving build performance with optimized dependency handling for TanStack store and router integration.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: db4a4196-284b-4747-93bc-8709315779f7

📥 Commits

Reviewing files that changed from the base of the PR and between e4ac3cc and 64cea9f.

📒 Files selected for processing (1)

• code/frameworks/tanstack-react/src/preset.ts

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📝 Walkthrough

Walkthrough

Adds a new exported constant optimizeViteDeps to the TanStack React preset that enumerates three dependencies for Vite optimization, including TanStack store and router packages plus an external-store shim. No functional behavior changes.

Changes

Vite Dependencies Configuration

Layer / File(s)	Summary
Vite Optimization Configuration code/frameworks/tanstack-react/src/preset.ts	New exported optimizeViteDeps constant lists three dependencies (TanStack store, router, and external-store shim) for Vite dependency optimization.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• storybookjs/storybook#33875: Adds optimizeViteDeps constant in another framework preset file following the same pattern.
• storybookjs/storybook#33577: Modifies an existing optimizeViteDeps constant in a framework preset to add Vite dependencies.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

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