@storybook/addon-docs

• Addon Vitest: Support init in Vitest >= 3.2

• CLI: Fix package manager instantiation in empty directories

• CLI: Improve support for upgrading Storybook in monorepos

• CLI: Show Storybook version in the upgrade command

• Core: Enhance package manager install methods to support optional force flag

• Addons: Use chromatic-com/storybook without version specifier

• Angular: Tailwind 4 compatibility

• Angular: Fix Storybook experimentalZoneless is not compatible with Angular 20

• React Native: Fix window event listeners that dont exist on rn

• Angular: Update MiniCssExtractPlugin configuration for cache busting

• CSF: Story ComponentAnnotations['subcomponents'] to correctly use its own type for subcomponents rather than attempt to inherit from the component

• Core: Delete shim addon packages

• Core: Disable interactions debugger on composed stories to avoid cross-origin error

• Core: Fix cyclical dependency in core addons

• Core: Restore original clipboard after invoking userEvent.setup()

• Next.js: Add webpack alias to resolve Next.js package conflicts

• Next.js: Enhance Vite configuration with styled-jsx aliasing

• Addon Docs: Fix SyntaxHighlighter "Copy" button by avoiding potentially mocked clipboard

• Addon Themes: Define missing React dependencies

• Addon-vitest: Fix adding with --skip-install failing missing packageJson invariant

• removed

  AddonDocs: Remove export of blocks

• Automigration: Enhance removeEssentials to convert options

• CLI: Don't install addon-onboarding during minimal installs

• Addon Docs: Fix reference to global JSX namespace

• Angular: Improve Vite compatibility

• Preview: Fix type issues

• Telemetry: Improve error handling

• Addon A11y: Briefly disable highlights while Axe is running

• CLI: Consider Storybook React Native packages in upgrade command

• Next.js: Fix module transpilation

• Svelte: Fix source view always using <wrapper ...>

• Testing: Fix toSatisfy-matcher implementation

• Angular: Include 20.x in version range

• CLI: Update React Native init generator for v9

• React Native Web: Include expo in babel transforms

• Telemetry: Fix storybook version and add test run events

Storybook 9.0 is here

This is a huge release focused on testing and bundle size.

• Component testing

  • 👆 Interactions

  • ♿️ Accessibility

  • 👁️ Visual changes

  • 🛡️ Coverage

• 🪶 48% lighter bundle

• 🏷️ Tags-based organization

• 🌐 Story globals

• 🏗️ Major upgrades: Svelte, Next, React Native, Angular

Please checkout our Migration guide to upgrade from earlier versions of Storybook. To see a comprehensive list of changes that went into 9.0, you can refer to the 9.0 prerelease changelogs

List of all updates

• Addon A11y: Add linkPath to Axe results and use it in copy link action

• Addon A11y: Fix setup as part of storybook create

• Addon A11y: Fix usage of axe-core in pnpm projects

• Addon A11y: Fix various issues and inconsistencies

• Addon A11y: Improve selector automigration detection

• Addon A11y: Only run checks in story mode

• Addon A11y: Provide full report in a11y manual runs

• Addon A11y: Use short titles and friendly summary messages in A11y report

• Addon Controls: Fix loading state UI in addon panel

• Addon Docs: Fix layout: centered in conjunction with inline: false

• Addon Docs: Fix docs-content overflow with TOC

• Addon Docs: Fix iframe content width in centered layout

• Addon Docs: Improve TableOfContents HTML structure and a11y

• Addon Docs: Reset error boundary when story changes to recover from erros

• Addon Docs: Simplify color parsing and color cycling logic

• Addon Docs: Update telejson

• Addon Pseudo States: Move package into monorepo

• Addon Test: Improve unhandled error messages

• Addon Test: Rename @storybook/experimental-addon-test to @storybook/addon-vitest

• Addon Vitest: Ensure vitest exclusions are relative to the project root, not cwd

• Addon Vitest: Fix broken docs links

• Addon Vitest: Fix watch mode for new files

• Addon Vitest: Ignore mdx files as part of tests

• Addon Vitest: Improve handling multiple browser mode projects

• Addon Vitest: Support vitest.projects.ts file as workspace file during postinstall

• Addon Vitest: Transform @storybook/nextjs imports to @storybook/nextjs-vite during init

• Addon Vitest: Use its own cache directory

• Addon-a11y: Replace element parameter with context

• Addon-A11y: Various improvements

• Addon-Essentials: Remove addon-docs

• Addon-Test: Automatically load before all

• Addon-test: Exclude storybook-static from coverage reports

• Addon-test: Fix watching non-story files, run all tests on preview change

• Addon-Test: Migrate to new test provider API, drop Vitest 2 support

• Addon-Vitest: Always clean coverage before (re)running

• Addon-vitest: Fix coverage being disabled with Run All button

• Addon-vitest: Fix coverage when restarting Vitest due to config change

• Addon-vitest: Fix wrong test count in telemetry

• Addon-vitest: Remove internal log for staticDir

• Addon-vitest: Support paths with spaces

• Addons: Add shim Storybook addons for previously removed addons

• Addons: Move @storybook/addon-interactions into core

• Addons: Remove @storybook/addon-storysource

• Addons: Update the Viewport and Background Addon

• AddonVitest: Use framework package, not renderer

• All packages: Remove unused dependencies

• Angular: Add @angular-devkit/build-angular to default installed pacakages in angular

• Angular: Filter non-inputs from controls

• Angular: Remove invalid defaults for start-storybook

• ArgTypes: Always extract argTypes, even without addon-docs

• Autoblock: Add autoblocker for addon-test

• Autoblock: Fix link

• AutoBlocker: Add major version upgrade blocker

• Automigrate: Disable missingStorybookDependencies for 9.0

• Automigrate: Prefer framework import

• Automigration: Add new Storybook addons to consolidated packages mapping

• Automigration: Adjust addon-docs install condition

• Automigration: Always scan file system to substitute essential addons

• Automigration: Correctly apply the wrap-require automigration in ESM modules

• Automigration: Enhance import transformation to handle partial package matches

• Automigration: Ensure correct addition of missing dependencies

• Automigration: Fix an issue when main.js addons have dynamic values

• Automigration: Fix consolidated-imports with sub-paths

• Automigration: Fix wrap require wrapper

• Automigration: Improve renderer to framework automigration

• Automigration: Migrate users to codePanel

• Automigration: Misc addon-essentials migration fixes

• Automigration: Pass over flags when calling automigrations

• Automigration: Remove @storybook/addon-essentials proper

• Automigration: Remove docs.autodocs field

• Automigration: Respect config-dir option

• Automigration: Update mapping for '@storybook/experimental-nextjs-vite'

• Automigrations: Add logging

• Automigrations: Fix installation of addon-docs

• Automigrations: Re-add renderer-to-framework and fix issue in monorepositories

• Backgrounds/Viewport: Fix resetting

• Blocks: IconGallery improvement

• Cleanup: Remove obsolete dependency

• CLI: Add storybook-static to .gitignore on init

• CLI: Add detection for the storybook package being behind any other core packages

• CLI: Add index command / API

• CLI: Add React Native .rnstorybook CLI automigration

• CLI: Detect correct storybook version on upgrade

• CLI: Do not install renderer package on init

• CLI: Enhance compatibility check: deprecated detection

• CLI: Fix framework for preview imports

• CLI: Fix get versions utility for NPM

• CLI: Improve CLI upgrade process for @latest and @next

• CLI: Improve package upgrade logic

• CLI: Install prereleases of @chromatic-com/storybook

• CLI: Make sure that the add commands logs all output to the console

• removed

  CLI: Remove @latest from yarn create commands

• CLI: Supress npm notice update log messages

• CLI: Tweak init prompt

• CLI: Update nx docs in Storybook detection error

• CLI: Wrap object addon names in wrap-require migration

• CodePanel: Show originalSource code

• Controls: Embed addon-controls into the core

• Controls: Remove empty state video link

• Core / Addon A11y: Emit STORY_HOT_UPDATED and rerun A11y tests on HMR

• Core: Add error boundary to tabs to prevent addon errors breaking Storybook

• Core: Add highlight as public API

• Core: Add preview navigator and --preview-only CLI flag

• Core: Automatically expand testing module on unhandled error

• Core: Avoid pre-bundling of preview-api in manager entries

• Core: Bring back loading globals from global types in portable stories

• Core: Builder-manager disable metafile

• Core: Change require.resolve path for storybook/package.json

• Core: Cleanup dependencies

• Core: Create features for addons moved into core

• Core: Do not show 'Render story' step in interactions

• Core: Draw highlights on top of canvas and add various new features

• Core: Fix core annotations applied twice

• Core: Fix favicon issue on dev server

• Core: Fix highlight clickEvent serialization and export public types

• Core: Fix highlight conflicts

• Core: Fix highlighting zero-pixel elements and focus on single element

• Core: Fix sidebar accessibility order for screen readers

• Core: Improve unhandled error detection

• Core: Increase compile targets for node & browsers

• Core: Make sure to only mutate writable arrays

• Core: Move @storybook/addon-actions into storybook

• Core: Move @storybook/instrumenter into core

• Core: New Status Store

• Core: New Test Provider Store

• Core: Prebundle jsdoc-type-pratt-parser again

• Core: Re-Export renderers from frameworks

• Core: Remove util, browser-assert, process deps

• Core: Remove uuid package from core

• Core: Remove deprecated parts of test provider API

• Core: Remove duplicate notification dot on sidebar buttons on mobile

• Core: Remove maximum-scale=1 from viewport meta tag

• Core: Rename local tests to interactions

• Core: Set a minimum height/width for the targetable area of highlights

• Core: Show "Render story" event explicitly in Component Tests event trace

• Core: Support groups and info icon in highlight popover menu

• Core: Support React Native environment without static class blocks

• Core: Testing Module UI improvements

• Core: Wait for animations before completing render cycle

• CSF-Tools: Add support for existing node imports and improve import handling

• Csf-Tools: Enhance setFieldNode logic to handle variable declarations

• CSF: Fix handling of renamed story exports

• Dependencies: Update docgen

• Dependencies: Upgrade @types/estree package to version v1.0.6

• Dependencies: Upgrade telejson

• Dependencies: Upgrades

• Dependencies: Upgrades for security

• Dependencies: Upgrades for security

• Dependencies: Upgrades for security

• Eslint-plugin: Handle JSON5 format

• ESLint: Fix flat config setup

• Essentials: Move remaining addons into core

• Highlights: Dont run highlights when the feature is disabled

• Hooks: Stabilize experimental afterEach hook

• removed

  HTML Framework: Remove support for HTML Webpack 5

• Indexer: Do not create autodocs entries unless addon-docs installed

• Init: Install framework stories instead of renderer stories

• Instrumenter: Fix preview-api import for react-native

• Interactions: Rename component test panel

• Maintenance: Drop tooling support

• Maintenance: Merge @storybook/core with storybook

• Maintenance: Migrate eslint-storybook-plugin into the monorepo

• Maintenance: Remove aliasses in builder configurations & scripts

• removed

  Maintenance: Remove deprecated APIs

• removed

  Maintenance: Remove deprecated packages

• Maintenance: Remove obsolete automigrations

• Maintenance: Specify that Addon Test now requires Vitest 3.0

• Manager: Add reactivity to useParameter

• Manager: Fix Uncaught ReferenceError: global is not defined

• Migration: Add auto-automigration for merged packages

• Migration: Improve glob question text

• Next.js-Vite: Stabilize @storybook/experimental-nextjs-vite

• removed

  Next.js: Remove deprecated compatibility files

• Next.js: Upgrade image-size to 2.0

• Nextjs Vite: Add runtime check for malformed postcss config

• Nextjs-Vite: Update vite-plugin-storybook-nextjs version and add optimizeDeps

• Node.js: Align Node.js version support

• removed

  Preact: Remove support for Preact Webpack 5

• Presets: Use .js files when .cjs files are passed for entries that should be ESM

• Pseudo States: Ignore escaped pseudo-class names

• React Native Web: Add RNW to vitest supported frameworks

• React Native: Fix support for 9.0

• React-Native: Fix __STORYBOOK_ADDON_INTERACTIONS_INSTRUMENTER_STATE__ access

• React-Native: Fix userEvent.setup() errors in jest

• React-Native: Fix userEvent.setup() errors outside browser context

• React-Native: Update config directory to .rnstorybook

• React: Don't use Act wrapper in Storybook when rendering in docs

• React: Ensure render functions and decorators are react components

• React: Export returntype of ReactMeta#story

• React: Remove react import in template files

• Remove: Addon mdx-gfm (@storybook/addon-mdx-gfm)

• Revert "Svelte: Adjust Svelte typings to include Svelte 5 function components"

• Save from Controls: Replace rendererPackage with frameworkPackage

• Source Loader: Remove package

• Source: Support async parameters.docs.source.transform

• Svelte-vite: Improve SvelteKit detection error

• Svelte: Adjust Svelte typings to include Svelte 5 function components

• removed

  Svelte: Drop Support for Svelte < 5

• Svelte: Fix missing ts-dedent dependency

• Svelte: Install latest version of @storybook/addon-svelte-csf

• Svelte: Pin svelte2tsx to solve argType regression

• Svelte: Remove dependency on sveltedoc-parser

• Svelte: Remove unused svelte-preprocess dependency

• SvelteKit: Forward form events when mocking enhance

• Telemetry: Add Svelte CSF usage

• Telemetry: Use version from our package.json for storybookVersion

• Test Addon: Stabilize and remove experimental status

• Toolbars: Embed addon-toolbars into the core

• Typescript: Drop Typescript < 4.9 support

• UI: Add options to hide sidebar and toolbar per story

• UI: Clear filters on run all and clear all statuses

• UI: Don't include error state in sidebar context menu

• UI: Fix status missing from sidebar

• UI: Visual tweaks to badges and improved layout for a11y panel

• Update react-router-dom to lowest React19 type-compatible version

• Viewport: Embed addon-viewport in the core

• Viewport: Fix globals type

• Vite-Builder: Handle undefined previewConfig

• Vite: Add 'storybook/viewport' to INCLUDE_CANDIDATES in optimizeDeps.ts

• Vite: Improve handling of preview annotations

• Vite: Normalize preview annotation paths

• Vite: Support Vite 6 and Docs

• Vitest: Remove beforeAll in vitest.setup.ts in automigration

• removed

  Vue3: Remove support for Webpack 5

• Web Components: Remove Webpack 5 support

• Yarn: Update Yarn package command execution to use 'exec'

Total contributions: 240 Unique contributors: 29

The 8.6 release focuses on Storybook Test, which brings realtime component, accessibility, and visual UI tests to your favorite component workshop.

Here’s what’s new:

• 🎁 Storybook Test installer for out-of-the-box tests in new projects

• 🦾 Accessibility “todo” workflow to systematically fix a11y violations

• 🗜️ 80% smaller create-storybook package for much faster installs

• 🧪 Dozens of Test fixes based on user feedback

• 📕 Docs fixes for table of contents, code snippets, and more

• security

  🚨 Key security fixes for Vite and ESbuild

• 💯 Hundreds more improvements

List of all updates

• Addon A11y: Introduce parameters.a11y.test

• Addon-A11y: Fix preset loading when loaded via getAbsolutePath

• Addon-Docs: Change URL hash when TOC item is clicked, and fix TOC loading bugs

• Addon-docs: Consider custom code snippet in story code panel and update styles

• Addon-Test: Add telemetry data for Focused Tests

• Addon-Test: Fix config and watch mode inconsistencies

• Addon-Test: Fix console error in build mode

• Addon-Test: Make sure that only one global portable story config is ever loaded

• Angular: Fix accent character issue

• Angular: Support experimental zoneless mode

• Angular: Support v19.2 when @angular/animations is not installed

• Builder-Vite: Fix resolve id warning

• Builder-Vite: Fix runtime and iframe 404 on first load

• Bun: Add support for text lock file

• Cleanup: Remove unused constants in viewport addon

• CLI: Don't initially select Documentation and Testing features

• CLI: Fix peer dep issues for npm users during upgrade

• CLI: Fix printing of selected features

• CLI: Make telemetry data an object

• CLI: Prompt users for RN vs RNW on init

• CLI: Reimplement features prompt logic to handle --yes and fix --features

• CLI: Remove Storybook dependencies before adding re-adding them

• CLI: Use correct storybook internals import in automigration

• Codemod: Always get real path of files

• Codemod: Handle addon essentials differently in csf factories

• Codemod: Migrate meta.args to meta.input.args in csf factories

• Codemod: Use real path from symbolic links

• Core: Add UniversalStore API to sync state/events between multiple environments

• Core: Add connection timeout notification

• Core: Allow empty render functions in CSF factories

• Core: Always place cache dir inside node_modules

• Core: Don't set process.env.NODE_ENV and process.env.DEV

• Core: Fix addon essentials preview preset

• Core: Fix extracting import path when it's not a core addon

• Core: Fix invalid Websocket termination

• Core: Fix statically serving single files and multiple dirs on the same endpoint

• Core: Fix undeclared internal dependencies

• Core: Improve type compatibility with React 19

• Core: Move CSF to monorepo

• Csf Tools: Allow ConfigFile to create more import syntaxes

• CSF: Add support for CSF factories

• Essentials: Fix addon-essentials not working when used with getAbsolutePath

• Manager: Escape single quotes in dynamic import paths in wrapManagerEntries function

• Manager: Fix escaping of single quotes in dynamic import paths

• Manager: Fix panel reactivity

• React: Fix incorrect import in preview.ts

• Svelte: Fix conflicting variable names and support for +page.svelte files

• Test addon: Only update vitest.config.ts with workspaces, otherwise create vitest.workspace.ts

Storybook 8.5 is packed with powerful features to enhance your development workflow. This release makes it easier than ever to build accessible, well-tested UIs. Here’s what’s new:

• 🦾 Realtime accessibility tests to help build UIs for everybody

• 🛡️ Project code coverage to measure the completeness of your tests

• 🎯 Focused tests for faster test feedback

• ⚛️ React Native Web Vite framework (experimental) for testing mobile UI⚛️

• 🎁 Storybook test early access program to level up your testing game

• 💯 Hundreds more improvements

List of all updates

• Addon A11y: Add conditional rendering for a11y violation number in Testing Module

• Addon A11y: Add typesVersions support for TypeScript definitions in a11y package

• Addon A11y: Adjust default behaviour when using with experimental-addon-test

• Addon A11y: Change default element selector

• Addon A11y: Create a11y test provider and revamp a11y addon

• Addon A11y: Don't set a11y tag as comment in automigrations

• Addon A11y: Fix skipped status handling in Testing Module

• Addon A11y: Refactor environment variable handling for Vitest integration

• Addon A11y: Remove warnings API

• Addon A11y: Run the a11y automigration on postInstall

• Addon A11y: Show errors of axe properly

• Addon A11y: Update accessibility status handling in TestProviderRender

• Addon Docs: Dynamically import rehype

• Addon Docs: Make new code panel opt in

• Addon Onboarding: Prebundle react-confetti

• Addon Test: Add @vitest/coverage-v8 during postinstall if no coverage reporter is installed

• Addon Test: Add prerequisite check for MSW

• Addon Test: Add support for previewHead

• Addon Test: Add Vitest 3 support

• Addon Test: Always run Vitest in watch mode internally

• Addon Test: Always use installed version of vitest

• Addon Test: Clarify message when vitest detects missing deps

• Addon Test: Clear coverage data when starting or watching

• Addon Test: Context menu UI

• Addon Test: Context menu updates

• Addon Test: Correctly stop Storybook when Vitest closes

• Addon Test: Filter out falsy test results in TestProviderRender

• Addon Test: Fix documentation links

• Addon Test: Fix duplicate test.include patterns

• Addon Test: Fix environment variable for Vitest Storybook integration

• Addon Test: Fix error reporting for vitest crashes

• Addon Test: Fix generated path to vitest.setup.js

• Addon Test: Fix indexing behavior

• Addon Test: Fix printing null% for coverage

• Addon Test: Fix run request while booting or restarting Vitest

• Addon Test: Handle undefined storyId

• Addon Test: Improve error message on missing coverage package

• Addon Test: Improve support for mono-repos

• Addon Test: Make component tests status row link to the story's tests panel

• Addon Test: Merge viteFinal config into vitest config

• Addon Test: Only optimize react deps if applicable in vitest-plugin

• Addon Test: Only reset story count on file change when watch mode is enabled

• Addon Test: Optimize internal dependencies

• Addon Test: Prompt switch to experimental-nextjs-vite

• Addon Test: Refactor test addon to include stories automatically

• Addon Test: Remove a11y placeholder

• Addon Test: Replace glob with tinyglobby

• Addon Test: Serve staticDirs with Vitest

• Addon Test: Show sub test provider toggle state in main testing module

• Addon Test: Support Storybook environment variables in Vitest

• Addon Test: Use correct vitest config file path

• Addon Test: Use local storybook binary instead

• Addon Test: Use ProgressSpinner for stop button in Testing Module

• Addon Test: Wait for 2 seconds before showing result mismatch warning

• Addon Test: Wrap sub-paths exported with require.resolve

• deprecated

  Addon Themes: Deprecate useThemeParameters

• Angular: Support statsJson in angular schemas

• Automigration: Improve addon-a11y-addon-test

• Automigration: Improve setup file transformation and version range handling for a11y migration

• Automigrations: Skip vite config file migration for react native web

• CLI: Fix init help for storybook command

• CLI: Fix new-frameworks automigration

• CLI: Re-Add Nuxt support

• CLI: Update a11y-test comment with experimental caveat

• Composition: Fix composed story search

• Composition: Hide contextMenu on composed storybooks

• Core / Addon Test: Add config UI to Testing Module

• Core / Addon Test: Support intercepting and modifying internal test provider state updates

• Core + Addon Test: Refactor test API and fix total test count

• Core: Add bun support with npm fallback

• Core: Avoid getting stuck in locked state

• Core: Disable SidebarContextMenu in static builds

• Core: Emit deprecated TESTING_MODULE_RUN_ALL_REQUEST for backward compatibility

• Core: Evaluate main config when checking 'whats new' notifications

• Core: Fix ERR_PACKAGE_PATH_NOT_EXPORTED in @storybook/node-logger

• Core: Fix scrollIntoView behavior and reimplement testing module time rendering

• Core: Fix bundling of React

• Core: Float context menu button on top of story titles in sidebar

• Core: Prevent clipping box shadow on file search modal

• Core: Prevent infinite rerendering caused by comparison by reference

• Interactions: Correctly load preset when absolute paths are used

• Maintenance: Move @types/node to devDeps consistently

• Manager API: Fix infinite render-loop caused by useSharedState

• Manager: Add tags property to GroupEntry objects

• Manager: Fix size regression

• Manager: Optimize getPanels function with memoization

• Next.js: Fix webpack fsCache not working

• Next.js: Support v15.1.1

• Next.js: Upgrade sass-loader from ^13.2.0 to ^14.2.1

• Nextjs-Vite: Add TS docgen support

• Nextjs-Vite: Fix docgen types in main config

• Onboarding: Replace react-confetti with @neoconfetti/react

• React Native Web: Add framework, CLI integration, sandboxes

• React: Fix RSC compatibility with addon-themes and hooks

• React: Force act running always in sequence

• React: Use Act wrapper in Storybook for component rendering

• ReactVite: Add @storybook/test as optional peer dependency

• RNW-Vite: Add built-in Flow support

• RNW-Vite: Add tsconfig path aliases support

• RNW-Vite: Fix flow plugin including too many things

• RNW-Vite: Fix reanimated support with babel plugin for node_modules

• RNW-Vite: Integrate with experimental-addon-test

• Storysource Addon: Fix source-loader prettier imports

• Telemetry: Add metadata distinguishing "apps" from "design systems"

• TestAddon: Refactor UI & add config options

• Toolbars: Suppress deprecation warning when using dynamic icons

• UI: Add support for groups to TooltipLinkList and use it in main menu

• UI: Add Yarn to About Section

• UI: Fix controls and parameters on tag-filtered stories

• UI: Fix overlapping shadow of testing module on scrollbar

• UI: Fix test provider event handling on startup

• UI: Keep failing stories in the sidebar, disregarding filters

• UI: Sidebar context menu addon API

• Vite: Add extra entries to optimizeDeps

• Vite: Don't prefix story import with @fs

• Vite: Fix preview runtime import

• Vite: Fix wrong import paths when configDir is not in project root

• Vite: Import preview runtime as ordinary module

• Vitest: Add plugins from viteFinal

• Vue: Extend sourceDecorator to support v-bind and nested keys in slots

• Vue: Fix vue-component-meta docgen HMR not working

Storybook 8.4 comes with a ton of exciting new features designed to give you the best experience developing, testing, and debugging tests in the browser!

• ▶️ Unified UI for component testing

• 5️⃣ Svelte 5 and Svelte CSF support

• ⚛️ React Native Storybook 8 release

• 🏷️ Tags-based filtering to organize your Storybook

• 🫧 Dependency cleanup to reduce install footprint

• 💯 Hundreds more improvements

List of all updates

• Addon Test: Adjust file exports to be ESM/CJS compatible

• Addon Test: Error when addon interactions exists

• Addon Test: Escape XML when converting ANSI to HTML in test errors

• Addon Test: Fix hiding stacktrace for assertion errors in test panel

• Addon Test: Improve Error Handling

• Addon Test: Improve postinstall script

• Addon Test: Improve unsupported vitest message

• Addon Test: Only register testing module in Vite projects

• Addon Test: Throttle Vitest progress updates more heavily

• Addon-docs, blocks: Prebundle dependencies

• Addon-Test: Support for @vitest/browser v2.1.2

• Blocks: Prebundle es-toolkit

• Builder-vite: Replace .at() call with in codegen

• CLI: Don't add @storybook/addon-links by default

• CLI: Ensure .gitignore updated via CLI ends with a newline

• CLI: Fix yarn detection

• CLI: Migrate from chalk to picocolors

• CLI: Refactor NPMProxy error parsing logic

• ConfigFile: Fix export { X } parsing

• Core: Add unified UI Testing Module

• Core: Close story status menu when selecting an item

• Core: Fix building Storybook deleting project root files

• Core: Fix race condition during empty folder init

• Core: Make prettier an optional peer dependency

• Core: Migrate from express to polka

• Core: Migrate from qs to picoquery

• Core: Open 'Component tests' addon panel when clicking a story status

• Core: Remove handlebars usage

• Core: Remove dependence on file-system-cache

• Core: Replace fs-extra with the native APIs

• Core: Replace lodash with es-toolkit

• Core: Show checkmark icon in story status dropdown and update status label for component tests

• Core: Show tooltip on filter toggles to clarify their purpose

• Core: Track test provider state in sessionStorage

• Core: Upgrade esbuild, broadening version range

• Dependencies: Upgrade VTA to v3.2.0 to resolve peerDep conflict

• Interactions: Escape xml of interactions errors

• Maintenance: Fix broken and outdated documentation links

• Manager: Add tags property to ComponentEntry objects

• React: Prebundle all of renderers/react's dependencies

• Svelte: Improve argTypes inference with svelte2tsx - support runes

• UI: Brand image css class conflict causes image to resize on hot reloads

• UI: Fix RefIndicator to use CheckIcon instead of string

• UI: Simple tag filtering

• UI: Use production-mode react in manager

• Viewport-addon: Add InitialViewportKeys type to viewport addon

• Vite: Add jsdoc-type-pratt-parser to optimizeDeps

• Vite: Cleanup and prebundle dependencies

• Webpack: Fix export 'act' (imported as 'React4') was not found in 'react' errors in webpack