Refactor: Migrate codebase from cjs to esm

- Updated all `require` statements to `import` statements.
- Replaced `module.exports` with `export` syntax.
- Ensured compatibility with ESM format across the project.

Author: Sunny-117

lib/node/constants.mjs

@@ -1,5 +1,4 @@
 import path from 'path';
-import fs from 'fs';
 import {
   fileURLToPath
 } from 'url';