Upgrade major dependencies to latest versions#38
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This commit upgrades all major dependencies to their latest versions, including several breaking changes that required code modifications: ## Major Updates: ### React 18 → 19 - Updated react and react-dom to v19.2.0 - Updated @types/react and @types/react-dom to v19.2.2 - Fixed JSX namespace references (JSX.Element → React.JSX.Element) - All tests passing with React 19 ### Tailwind CSS 3 → 4 - Updated tailwindcss to v4.1.15 - Migrated from @tailwind directives to @import 'tailwindcss' - Switched to @tailwindcss/postcss plugin for PostCSS integration - Updated build scripts to use PostCSS CLI instead of Tailwind CLI - Added postcss-cli as dev dependency ### Headless UI 1 → 2 - Updated @headlessui/react to v2.2.9 - Migrated RadioGroup component API: - RadioGroup.Label → RadioGroupLabel - RadioGroup.Option → Radio - RadioGroup.Description → RadioGroupDescription - Removed 'active' property from Radio render props (removed in v2) ### Vitest 2 → 3 - Updated vitest, @vitest/ui, and @vitest/coverage-v8 to v3.2.4 - All 160 tests passing with new version ### Biome 1 → 2 - Updated @biomejs/biome to v2.2.6 - Fixed configuration: 'include' → 'includes' - Applied linter auto-fixes for import types and unused variables ### Other Updates: - concurrently: 7.x → 9.2.1 - jsdom: 25.x → 27.0.1 - @testing-library/react: 14.x → 16.3.0 - postcss-import: 14.x → 16.1.1 - postcss-nested: 5.x → 7.0.2 - postcss-preset-env: 7.x → 10.4.0 - publint: 0.2.x → 0.3.15 - @arethetypeswrong/cli: 0.15.x → 0.18.2 ## Testing: ✅ All 160 tests passing ✅ TypeScript type checking passing ✅ Biome linting passing (0 errors, 0 warnings) ✅ Build successful 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Downgrade jsdom from v27.0.1 to v26.1.0 to resolve webidl-conversions compatibility issue that was causing test failures in CI. The error was: TypeError: Cannot read properties of undefined (reading 'get') at Object.<anonymous> node_modules/webidl-conversions/lib/index.js:325:94 This is a known compatibility issue with jsdom v27 and certain test environments. jsdom v26.1.0 is stable and fully compatible with Vitest 3. Testing: ✅ All 160 tests passing ✅ Coverage report generating successfully ✅ No unhandled errors 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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This commit upgrades all major dependencies to their latest versions, including several breaking changes that required code modifications:
Major Updates:
React 18 → 19
Tailwind CSS 3 → 4
Headless UI 1 → 2
Vitest 2 → 3
Biome 1 → 2
Other Updates:
Testing:
✅ All 160 tests passing
✅ TypeScript type checking passing
✅ Biome linting passing (0 errors, 0 warnings)
✅ Build successful
🤖 Generated with Claude Code