CLI: Remove REACT_PROJECT projectType

[valentinpalkovic]

Closes #

What I did

As part of the CLI revamp project, the generator for the project type "REACT_PROJECT" was removed because it was identical to the one for the project type "REACT". I forgot to clean up the related projectType detection logic, which is now done in this PR!

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

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.

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Summary by CodeRabbit

• Changes
  • Removed support for React project type detection and onboarding. React projects will no longer be recognized or supported through the automatic detection flow.

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☁️ Nx Cloud last updated this comment at 2025-12-10 20:27:15 UTC

[nx-cloud]

View your CI Pipeline Execution ↗ for commit 589e0b2

Command	Status	Duration	Result
nx run-many -t compile,check,knip,test,pretty-d...	✅ Succeeded	10m 36s	View ↗

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☁️ Nx Cloud last updated this comment at 2025-12-10 20:27:09 UTC

[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request removes support for the REACT_PROJECT project type from the Storybook codebase. The enum member is deleted from the ProjectType definition, and all related references—including feature compatibility settings, template configurations, and associated tests—are removed.

Changes

Cohort / File(s)	Summary
Type Definition code/core/src/cli/projectTypes.ts	Removed REACT_PROJECT = 'react_project' enum member from ProjectType
Feature & Compatibility Services code/lib/create-storybook/src/services/FeatureCompatibilityService.ts, code/lib/create-storybook/src/services/ProjectTypeService.ts	Removed ProjectType.REACT_PROJECT from ONBOARDING_PROJECT_TYPES and deleted its TemplateConfiguration entry with associated peer dependency matcher
Tests code/lib/create-storybook/src/services/ProjectTypeService.test.ts	Deleted test case validating REACT_PROJECT detection via peerDependencies

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

• All changes are straightforward removals with no new logic or complex structural edits
• Changes are consistent in pattern across multiple files (same member/reference removal)
• Test deletion is minimal and clearly scoped
• Primary consideration: verify no other code paths depend on the removed enum member outside these files

Possibly related PRs

• Docs: Update install docs for --type with current project type values #33122: Appears to document or add support for "react_project" as a valid --type value, which conflicts with the removal of REACT_PROJECT enum member in this PR

✨ Finishing touches

• 📝 Generate docstrings

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📥 Commits

Reviewing files that changed from the base of the PR and between cfe4488 and 589e0b2.

📒 Files selected for processing (4)

• code/core/src/cli/projectTypes.ts (0 hunks)
• code/lib/create-storybook/src/services/FeatureCompatibilityService.ts (0 hunks)
• code/lib/create-storybook/src/services/ProjectTypeService.test.ts (0 hunks)
• code/lib/create-storybook/src/services/ProjectTypeService.ts (0 hunks)

💤 Files with no reviewable changes (4)

• code/lib/create-storybook/src/services/FeatureCompatibilityService.ts
• code/core/src/cli/projectTypes.ts
• code/lib/create-storybook/src/services/ProjectTypeService.test.ts
• code/lib/create-storybook/src/services/ProjectTypeService.ts

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