A secure login system for an accounting application with username/password authentication.

• Secure login page with username and password
• Session management
• User authentication and authorization
• Responsive design with professional styling
• SQLite database for user storage
• Password hashing for security

├── backend/
│   ├── database/
│   │   ├── migrations.ts    # User table schema
│   │   └── queries.ts       # User authentication queries
│   └── index.ts             # Main API server
├── frontend/
│   ├── components/
│   │   ├── LoginForm.tsx    # Login form component
│   │   └── Dashboard.tsx    # Post-login dashboard
│   ├── index.html           # Main HTML template
│   └── index.tsx            # Frontend entry point
└── shared/
    └── types.ts             # Shared TypeScript types

1. The system starts with a login page
2. Users enter username and password
3. Upon successful authentication, users are redirected to the dashboard
4. Sessions are managed securely

• Username: admin
• Password: admin123

(Change this in production!)