Add create-admin script to package.json and set up /api/users route in server.js for user management functionality.

scripts/createAdmin.js

@@ -0,0 +1,42 @@
+const mongoose = require('mongoose');
+const bcrypt = require('bcryptjs');
+const User = require('../models/User');
+require('dotenv').config();
+
+async function createAdminUser() {
+  try {
+    // Connect to MongoDB
+    await mongoose.connect(process.env.MONGODB_URI || 'mongodb://localhost:27017/car-tuning-crm');
+    console.log('Connected to MongoDB');
+
+    // Check if admin user already exists
+    const existingAdmin = await User.findOne({ username: 'admin' });
+    if (existingAdmin) {
+      console.log('Admin user already exists');
+      process.exit(0);
+    }
+
+    // Create admin user
+    const salt = await bcrypt.genSalt(10);
+    const hashedPassword = await bcrypt.hash('admin123', salt);
+
+    const adminUser = new User({
+      username: 'admin',
+      password: hashedPassword,
+      role: 'admin'
+    });
+
+    await adminUser.save();
+    console.log('Admin user created successfully');
+    console.log('Username: admin');
+    console.log('Password: admin123');
+
+  } catch (error) {
+    console.error('Error creating admin user:', error);
+  } finally {
+    await mongoose.disconnect();
+    process.exit(0);
+  }
+}
+
+createAdminUser();