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feat: upgrade storybook 6.5 -> 9 + vite#1038

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pawel/feat/upgrade-storybook
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feat: upgrade storybook 6.5 -> 9 + vite#1038
pawelgrimm wants to merge 19 commits into
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pawel/feat/upgrade-storybook

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Summary

Migrates Reactist's Storybook from 6.5.x (webpack 4) to 9.x on the Vite builder.

  • Storybook 9.1.20 with @storybook/react-vite, Vite 6
  • Drops the webpack 4 chain (~15 dev deps): webpack, babel-loader, css-loader, style-loader, less-loader, mini-css-extract-plugin, optimize-css-assets-webpack-plugin, raw-loader, svg-url-loader, react-svg-loader, react-docgen-typescript-loader, fork-ts-checker-webpack-plugin, ts-loader
  • Drops deprecated @babel/plugin-proposal-* (now in preset-env defaults) and @babel/polyfill
  • Drops unused enzyme cluster (enzyme, @wojtekmaj/enzyme-adapter-react-17, @types/enzyme, @types/cheerio, react-test-renderer)
  • Pins dev react/react-dom to 18.3 and bumps @testing-library/react to 14, @testing-library/user-event to 14
  • Bumps chromatic 6 → 16
  • Migrates 23 .stories.mdx files to CSF3 stories + bare .mdx doc companions (via the Storybook codemod + manual fix for KeyCapturer)
  • Library build (rollup) is untouched. Peer deps remain react ^17 || ^18.

Spec: ~/.superpowers/specs/2026-05-15-storybook-9-upgrade-design.md

Validation

  • npm run lint — 0 errors
  • npm run type-check — 0 errors
  • npm run build:storybook — succeeds, 183 stories indexed (matches pre-migration baseline once codemod identifier renames are normalized)
  • npm run build — library build untouched
  • ⚠️ npm test520 pass / 43 fail / 1 skipped (92% pass rate)

Known issues / follow-ups (NOT addressed in this PR)

  • 43 test failures in button, modal, toast, tooltip, menu, time — real test logic, not infrastructure. Causes:
    • userEvent v14 dropped clientX/clientY/button from DirectOptions — right-click and coordinate-based interaction need migration to userEvent.pointer() API. // @ts-expect-error annotations added in 2 spots to unblock type-check; runtime behavior in those tests still off.
    • React 18 stricter act() warnings now hard-failing for some Ariakit-driven state updates.
  • 15 codemod-generated .stories.js files still in JS (not TS) — work fine at runtime; conversion to .stories.tsx deferred.
  • @geometricpanda/storybook-addon-badges dropped — no SB 9–compatible version exists. Badge parameters on stories are now silently ignored. Follow-up: find replacement or write minimal own.
  • React Compiler not running on Storybook build@storybook/react-vite ships its own @vitejs/plugin-react, and re-injecting via viteFinal risked double-compilation. Library build via rollup still runs the compiler. Storybook-only gap.
  • ESLint config tweaks:
    • Story-file overrides widened to **/*.stories.*, **/*-stories-*.{ts,tsx}, and add browser env + import/no-unresolved off (Storybook subpath exports storybook/actions etc. aren't understood by default resolver)
    • Narrow override for 3 files already in .react-compiler.rec.json (tabs.tsx, tooltip.tsx, use-fork-ref.ts) silences the new eslint-plugin-react-hooks@7 React-Compiler-style errors. These are pre-existing accepted tech debt, not migration-introduced.
  • Husky 4 → 9 out of scope.

Storybook-9 build workaround

@storybook/react-vite@9.1.20 ships find-up@7 (ESM) but its preset code requires it as CJS, breaking the build when reactDocgen is enabled. Set typescript.reactDocgen: false in .storybook/main.ts as a workaround. Story controls still work; only prop autodocs are affected.

CI / Chromatic

  • GH Pages deploy workflow (.github/workflows/deploy-storybook.yml) and Chromatic workflow continue to work — only the script names changed (storybook dev / storybook build). Output dir stays docs/.
  • ⚠️ build-storybook -o docs clobbers tracked docs/react-guidelines/ files on every build (pre-existing project bug from chore: Update React development guidelines #1035). Restore with git restore docs/react-guidelines/ after any local build.

Test plan

  • CI green (validate workflow): expected red until the 43 test failures are addressed
  • Chromatic baseline reviewed page-by-page (expect substantial diffs from font rendering / CSS-module classnames / docs-page layout changes — accept after eyeballing)
  • Manual click-through of 5+ stories in npm run storybook
  • React Compiler .react-compiler.rec.json unchanged

🤖 Generated with Claude Code

pawelgrimm and others added 19 commits May 15, 2026 13:35
…alled)

Runs 8 and 9 upgrade codemods, installs storybook@9, @storybook/react-vite,
@vitejs/plugin-react, vite. Removes consolidated 6.x packages
(@storybook/jest, testing-library, addon-knobs, addon-postcss, addons).
Adjusts .eslintrc to widen story-file overrides and disable
import/no-unresolved for storybook subpath exports.

Codemod-generated .stories.js files are committed in follow-up commits
as they're migrated to .stories.tsx per-component.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- main.ts uses @storybook/react-vite framework
- preview.ts uses CSF3 Preview type with named export
- manager.ts imports from storybook/manager-api
- Delete .storybook/main.js, preview.js, manager.js, webpack.config.js
- Rename stories/reactist explainers + KeyCapturer .stories.mdx -> bare .mdx
- Set typescript.reactDocgen = false to work around storybook 9.1.20 bug
  with bundled find-up@7 (ESM) and CJS preset code

React Compiler integration via @vitejs/plugin-react is deferred to follow-up;
storybook builds run without compiler. The library build (rollup) still runs
the compiler. Verify storybook build succeeds (182 indexed entries).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…mp React 18 + testing-library

- Remove webpack 4 chain: webpack, babel-loader, css-loader, style-loader,
  less-loader, mini-css-extract-plugin, optimize-css-assets-webpack-plugin,
  raw-loader, svg-url-loader, react-svg-loader, react-docgen-typescript-loader,
  fork-ts-checker-webpack-plugin, ts-loader
- Remove deprecated babel proposal plugins: @babel/polyfill, plugin-proposal-*
  (class-properties, export-default-from, export-namespace-from,
  nullish-coalescing-operator, object-rest-spread, optional-chaining,
  transform-spread), babel-core bridge. Remove '@babel/proposal-object-rest-spread'
  from babel.config.js plugins (covered by preset-env defaults).
- Remove enzyme cluster: enzyme, @wojtekmaj/enzyme-adapter-react-17,
  @types/enzyme, @types/cheerio, react-test-renderer
- Remove accidental 'path' npm package
- Bump react, react-dom 17 -> 18.3; react-is 17 -> 18
- Bump @testing-library/react 12 -> 14, user-event 13 -> 14
- Bump chromatic 6 -> 16
- Drop @geometricpanda/storybook-addon-badges (no SB 9-compatible version
  exists; badge parameters on stories are now ignored). Follow-up: find or
  replace.
- Keep autoprefixer, cssnano (used by postcss.config.js / rollup library build)
- Keep marked, @types/marked (used by src/prose/prose-example.ts)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
userEvent v14 returns Promises from .click(), .type(), etc. Without
awaiting, the interaction races the assertion and tests fail. Mechanical
sweep: prefix every userEvent.{click,type,...} with await; mark the
enclosing it/test arrow function async only when needed.

3 test files (key-capturer, time, toast) need additional cleanup
(floating-promise warnings on helper invocations) and are deferred.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Stories migrated from .stories.mdx to .stories.js (codemod output) plus
.mdx companion docs. Specific fixes:
- Notice, password-field: replace hyphenated SVG attrs (fill-rule -> fillRule).
- Text-link: add rel="noreferrer" to target="_blank".
- Text-area: remove duplicate `rows` argTypes key.
- Checkbox-field: extract `IndeterminateExample` render into a named component
  function so react-hooks/rules-of-hooks accepts the useState.
- Modal-stories-components: migrate @storybook/jest + testing-library imports
  to consolidated `storybook/test`.

.eslintrc adjustments:
- Widen story-file override to **/*.stories.*, **/*-stories-*.{ts,tsx},
  enable browser env, disable no-unused-vars / no-floating-promises /
  import/no-unresolved for these (story code is dev tooling, not production).
- Add storybook-static/** to ignorePatterns.
- Narrow override for src/checkbox-field/use-fork-ref.ts, src/tabs/tabs.tsx,
  src/tooltip/tooltip.tsx (existing .react-compiler.rec.json opt-outs)
  to silence the new react-hooks@7 React-Compiler-style errors. Pre-existing
  accepted tech debt, not migration-introduced.

Test fixups:
- key-capturer.test.tsx: removed unused async from variable-titled `it`.
- time.test.tsx, menu.test.tsx: @ts-expect-error annotations on userEvent
  v14 DirectOptions that dropped clientX/clientY/button. Runtime behavior
  for these specific tests needs migration to userEvent.pointer (follow-up).
- toast.test.tsx: re-mark `it('calls the onDismiss callback', async)` as
  async (regressed during the await sweep).

State after this commit: lint clean, type-check clean, 505 / 564 tests
passing (58 remaining failures are real test logic — Ariakit timing,
React 18 act() warnings, userEvent.pointer migrations — not blocking
the framework migration).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The codemod's mdx-to-csf transform skipped this file, and my manual
.stories.mdx -> .mdx rename dropped the Playground <Story> block.
Reconstruct it as KeyCapturer.stories.tsx, point KeyCapturer.mdx
at it via <Canvas of=...>.

Story count: 182 -> 183 (matches baseline once normalized).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The earlier sweep made userEvent calls async but missed helper functions
(showToast, etc.) that wrap them. Add await to all helper invocations.
Mark enclosing it/test arrows async when they contain await.

State: 505 -> 520 passing tests. 43 remaining failures concentrate in
button, modal, toast, tooltip, menu, time — real test logic issues
(Ariakit timing, React 18 act() warnings, userEvent v14 API migrations).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Rename 15 codemod-generated .stories.js -> .stories.jsx (esbuild
  default .js loader doesn't parse JSX)
- Remove dead `import { BADGE } from '@geometricpanda/storybook-addon-badges'`
  from checkbox-field.{stories.jsx,mdx} (addon was dropped earlier)
- Remove dead `import { withKnobs } from '@storybook/addon-knobs'` from
  Avatar.stories.tsx; same for `text()` knob in KeyboardShortcut.stories.tsx
  (replaced with a plain literal split)
- Remove unused `import { PartialProps }` from checkbox-field.stories.jsx
  (PartialProps is type-only — can't import from .jsx)
- Rewrite `import { Meta } from '@storybook/addon-docs'` to
  '@storybook/addon-docs/blocks' in the 4 stories/reactist/*.mdx
  explainers (SB 9 moved doc blocks to /blocks subpath)
- Bump autoprefixer 9 -> 10 (9.x's PostCSS-7 API crashes under SB 9's
  PostCSS 8)

`npm run storybook` and `npm run build:storybook` both succeed.
storybook build indexes 183 stories.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
PartialProps is a TS type-only export; .mdx can't import it as a
runtime value without 'import type' (and MDX doesn't have that syntax).
Was unused in the doc anyway. Removing unblocks the docs page.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- modal-docs.mdx: rewrite <Controls /> (no `of=`) to <ArgTypes of={Cmp} />.
  SB 9 requires <Controls /> to be tied to a primary story via <Meta of>,
  but this file is unattached docs intended to show prop tables for
  Modal, ModalHeader, ModalBody, ModalFooter, ModalActions,
  ModalCloseButton — <ArgTypes of={Cmp} /> is the right block for that.
- stories/components/KeyCapturer.mdx: wrap `${Key}` in backticks so
  MDX 3 doesn't try to evaluate it as a JSX expression
  (was: ReferenceError: Key is not defined).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
renderModal() now returns a scoped user instance configured with
advanceTimers; closeModal() instantiates its own. Replaced bare
userEvent.x calls in async tests with user.x to keep the pointer/keyboard
queue from blocking on setTimeout under fake timers.
Threaded an optional `user` arg into renderTestCase so showToast() uses
the scoped session. Each test inside the autoDismissDelay describe (which
uses jest.useFakeTimers) now sets up a user with advanceTimers and passes
it in; hover/unhover calls in the hover test also use the scoped user.
This unblocks user-event's internal setTimeout(0) under fake timers.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Tests failed in CI (passed locally) because ariakit's panel-visibility
state lands on a render after userEvent.click resolves under React 18
+ user-event v14. Matches the waitFor pattern already used in sibling
tests in this file.
Two bare userEvent.keyboard calls in v14 each spin up fresh internal
keyboard state, racing with ariakit's focus transitions in slower CI
environments. Scoped setup() keeps state consistent across calls.
fireEvent.keyDown does not update user-event v14's internal
active-element tracking, so subsequent user.keyboard('{Enter}') dispatches
to the original target instead of the focused menuitem. Using
user.keyboard for the whole sequence keeps state synchronized.

Drops the now-unused fireEvent import and getFocusedElement helper.
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