VPN System - MySQL Update
=========================

CHANGED FILES:
- config.php         (DB credentials - edit this)
- app.php            (all functions - replaces old config.php logic)
- install.php        (run once to setup DB)
- pages/*.php        (all pages updated)

SETUP STEPS:
1. Upload all files to your server (replace existing)
2. Open Aapanel -> MySQL -> Create database + user
3. Edit config.php:
   - DB_HOST     = localhost
   - DB_NAME     = your_database_name
   - DB_USER     = your_database_user
   - DB_PASS     = your_database_password
   - ENCRYPT_KEY = (already set by install.php)
4. Go to: https://yoursite.com/vpn/install.php
5. Fill in details and click Install
6. DELETE install.php after success!

SECURITY:
- Admin password: bcrypt hashed in database
- Server API passwords: AES-256-CBC encrypted in database
- Change admin password from Admin -> Settings after install