Missing "dev" script in package.json when trying to run "npm run dev."

Question

I am facing some terrible problem as I installed npm using my vs code terminal... but when I try to run

npm run dev 
its throws some error..
npm ERR! Missing script: "dev"
npm ERR! 
npm ERR! To see a list of scripts, run:
npm ERR!   npm run


npm ERR! A complete log of this run can be found in: C:\Users\dasha\AppData\Local\npm-cache_logs\2023-09-18T14_22_40_412Z-debug-0.log

and my package.json file looks somthing like..

{

  "dependencies": {
    "three": "^0.156.1"
  },
  "devDependencies": {
    "vite": "^4.4.9"
  }
}

can anyone help..?

I tried manually fixing the package.json file by adding

  "name": "threejs_tut",
  "private": true,
  "version": "4.4.9",
  "type": "module",
  "scripts": {
    "dev": "vite",
    "build": "vite build"
  },

then it shows

> [email protected] dev
> vite


  VITE v4.4.9  ready in 188 ms

  ➜  Local:   http://localhost:5173/
  ➜  Network: use --host to expose
  ➜  press h to show help

and link doesn't work