Package scripts for CI

JSON
{
  "scripts": {
    "dev": "vite",
    "build": "tsc --noEmit && vite build",
    "preview": "vite preview",
    "lint": "eslint . --max-warnings 0",
    "test": "vitest run",
    "check": "npm run lint && npm run test && npm run build"
  }
}