Refresh tooling and dev dependencies (Storybook excluded)

[Copilot]

Updates build, test, and linting tooling to latest versions. UI libraries (MUI, Emotion, React) and application dependencies remain at their original versions. All dependencies consolidated into devDependencies.

Breaking Changes

ESLint 8 → 9

• Migrated to flat config (eslint.config.js)
• Removed .eslintrc.js
• Updated all ESLint plugins to v9-compatible versions

Build Tooling

• TypeScript: 5.5.4 → 5.9.3
• Vite: 5.4.1 → 5.4.11
• Babel: 7.25.2 → 7.28.6
• Rollup: 4.21.1 → 4.57.0 (optionalDependency)
• @vitejs/plugin-react: 4.3.1 → 5.1.2
• Added ajv@8 for build compatibility

Testing

• Vitest: 2.0.5 → 2.1.9
• @testing-library/react: 16.0.0 → 16.3.2
• @testing-library/jest-dom: 6.5.0 → 6.9.1
• jsdom: 25.0.0 → 27.4.0

Linting & Formatting

• ESLint: 8.57.0 → 9.39.2
• Prettier: 3.3.3 → 3.8.1
• typescript-eslint: 8.3.0 → 8.54.0
• eslint-config-prettier: 9.1.0 → 10.1.8
• eslint-plugin-prettier: 5.2.1 → 5.5.5
• eslint-plugin-react: 7.35.0 → 7.37.5
• eslint-plugin-jest: 28.8.0 → 29.12.1
• eslint-plugin-react-hooks: beta → 5.2.0

Other

• Lerna: 8.1.8 → 9.0.3
• babel-loader: 9.1.3 → 10.0.0
• Added storybook CLI package (required for v8)

Kept at Original Versions

• @mui/material: 5.16.7 (unchanged)
• @mui/x-date-pickers: 7.12.1 (unchanged)
• @emotion/react: 11.13.0 (unchanged)
• @emotion/styled: 11.13.0 (unchanged)
• date-fns: 2.30.0 (unchanged)
• formik: 2.2.9 (unchanged)
• react: 18.3.1 (unchanged)
• react-dom: 18.3.1 (unchanged)

Dependency Organization

• Moved all packages to devDependencies (removed separate dependencies section)
• All packages are dev dependencies since this is a library project

Notes

• Storybook remains at v8.2.9 as specified
• Using --legacy-peer-deps for Storybook compatibility
• vite-plugin-dts kept at 4.0.3 for stability

Original prompt

Refresh tooling and dev dependencies excluding storybook

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[cliedeman]

Move relevant deps to dev dependencies

[Copilot]

Done in 8cdc1b4. Moved @testing-library/jest-dom, eslint-plugin-react-hooks, react, and react-dom to devDependencies and removed the dependencies section entirely.

[cliedeman]

Do not upgrade mui, formik etc. dev tools only

[Copilot]

Done in 8cdc1b4. Reverted MUI, Emotion, date-fns, formik, and React to their original versions. Only dev tooling (TypeScript, ESLint, Prettier, Vite, Vitest, babel-loader, lerna, etc.) has been updated.

[Copilot]

Just as a heads up, I was blocked by some firewall rules while working on your feedback. Expand below for details.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• storybook.js.org
  • Triggering command: /usr/local/bin/node node /home/REDACTED/work/formik-mui/formik-mui/node_modules/.bin/storybook dev -p 6006 (dns block)
  • Triggering command: /usr/local/bin/node node /home/REDACTED/work/formik-mui/formik-mui/node_modules/.bin/storybook dev -p 6006 ns-Microsoft.CPlat.Core.RunCommandLinux.slice copilot/refresh-tooling-and-dependencies /formik-mui/node_modules/.bin/node --depth 5 REDACTED git ules�� get --local rgo/bin/node credential.helpenode (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)