feat: add nextjs tool helper

examples/01_node/src/index.tool.ts

examples/01_node/src/index.ts

examples/02_nextjs/.eslintrc.json

examples/02_nextjs/.gitignore

examples/02_nextjs/README.md

examples/02_nextjs/next.config.mjs

examples/02_nextjs/package.json

examples/02_nextjs/postcss.config.mjs

examples/02_nextjs/public/next.svg

examples/02_nextjs/public/vercel.svg

examples/02_nextjs/src/app/favicon.ico

examples/02_nextjs/src/app/globals.css

examples/02_nextjs/src/app/layout.tsx

examples/02_nextjs/src/app/page.tsx

examples/02_nextjs/src/index.tool.ts

examples/02_nextjs/tailwind.config.ts

examples/02_nextjs/tsconfig.json

packages/tool/package.json

packages/tool/src/plugin.ts

pnpm-lock.yaml