added create-user script

routes/register.js

@@ -9,7 +9,7 @@ router.post('/register', (req, res) => {
     return res.status(400).json({ error: 'Username and password are required' });
   }
 
-  execSync(`create-user ${username} ${password}`, (error, stdout, stderr) => {
+  execSync(`./scripts/create-user ${username} ${password}`, (error, stdout, stderr) => {
     if (error) {
       console.log('errer')
       if (error.message.includes('already exists')) {