chore: migrate from Webpack to Vite and modernize build toolchain #44
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This commit completes a comprehensive modernization of the build system and development tooling: ## Build System Migration - **Webpack → Vite**: Replaced Webpack with Vite for significantly faster builds and HMR - **Multi-format outputs**: Library now exports ESM, CJS, and UMD formats with proper package.json exports field - **TypeScript declarations**: Automated generation via vite-plugin-dts - **SWC compiler**: Replaced Babel with @vitejs/plugin-react-swc for faster transpilation ## Configuration Changes - **vite.config.ts**: Complete library build configuration with rollupOptions for multiple formats - **postcss.config.js**: Modern PostCSS setup (postcss-preset-env, autoprefixer, cssnano) - **eslint.config.js**: Migrated to ESLint v9 flat config format (new standard) - **.stylelintrc.json**: Simplified for Stylelint v16 compatibility - **tsconfig.json**: Updated moduleResolution to "bundler" for modern tooling ## Dependency Updates - Removed 21+ legacy packages (Webpack, Babel, loaders, plugins) - Upgraded core tools: ESLint 8→9, TypeScript, Sass, PostCSS, Stylelint - Added new tools: vite-plugin-dts, prettier, postcss-scss - Updated to latest SWC and React plugin versions ## Scripts & Workflows - Simplified package.json scripts: `build:prod/dev` → `build` - Added `typecheck` script for standalone type checking - Updated GitHub Actions workflows to use Vite and Node 20.x LTS - Improved caching and dependency management in CI/CD ## Developer Experience Improvements - 10-20x faster cold starts with Vite - Near-instant HMR for faster development - Modern ESLint flat config reduces configuration overhead - Better error messages and dev tooling ## Documentation - Updated CLAUDE.md with new build commands and architecture - All build outputs verified (dist/ contains ESM, CJS, UMD, type declarations) - Tests pass with Vitest v2, linting clean with modernized configs Breaking changes: - Library now requires modern bundlers that understand package.json exports field - Removed babel-plugin-remove-attribute (data-cy attributes no longer stripped in production) - ESLint consumers must migrate to flat config or use ESLint v8 compatibility mode
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- Fixed duplicate build.lib.formats warning by removing redundant config - Added globals.d.ts to vite-plugin-dts include to resolve SCSS module type errors - Configured vite-plugin-dts with proper tsconfig path and skipLibCheck - Set logLevel to 'error' to suppress non-critical diagnostics - Simplified tsconfig include patterns for better maintainability - Build now completes without TypeScript errors for SCSS imports All three output formats (ESM, CJS, UMD) build cleanly with proper type declarations.
- Eliminated unnecessary code that parsed package.json, streamlining the configuration file.
- Cleaned up vite.config.ts by removing the unnecessary import of readFileSync from 'fs', streamlining the configuration file.
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This commit completes a comprehensive modernization of the build system and development tooling:
Build System Migration
Configuration Changes
Dependency Updates
Scripts & Workflows
build:prod/dev→buildtypecheckscript for standalone type checkingDeveloper Experience Improvements
Documentation
Breaking changes: