Versa Pro - Ultimate Multipurpose Android App

- Major security overhaul with enterprise-grade protection including CSRF protection on all forms, SQL injection prevention with prepared statements, secure file uploads with validation, and login throttling to prevent brute force attacks.
- Implemented strict .env-only configuration system with zero defaults policy, removing all hardcoded credentials and .htaccess dependencies. 
- Added comprehensive input sanitization, output escaping for XSS prevention, API rate limiting, and secure session management with HttpOnly cookies. 
- Fixed critical bugs including navigation panel issues, environment cache persistence, and authentication errors. Security score improved from 4.0/10 to 8.0/10 - production ready with high security level.

Support for SDK 36 - Android 16
Optimized code and comments
Fix edminor