feat: add interactive virtual terminal demo to website

[avrabe]

Enhance the project website with a comprehensive virtual terminal demonstration that shows the complete Loxone MCP setup process in action. This provides visitors with an immediate understanding of how the setup wizard works without requiring actual installation.

Key features of the virtual terminal demo:

• Realistic terminal interface with macOS-style header and controls
• Complete setup flow simulation from network discovery to completion
• Animated typing with realistic delays and user interaction patterns
• Auto-restart functionality that loops the demo every 5 seconds
• Manual restart button for user control
• Responsive design that works on mobile and desktop devices
• Uses Atkinson Hyperlegible font for improved accessibility

The demo simulates:

• Network discovery with UDP and HTTP scanning progress
• Miniserver selection from discovered devices (192.168.1.42, 192.168.1.85)
• Interactive credential entry with masked password display
• Connection testing with realistic 2-second delay
• Success confirmation with project details and version info
• Next steps guidance for users

Technical implementation:

• Intersection Observer API triggers demo when section becomes visible
• Promise-based typing animation with configurable speeds
• CSS animations for blinking cursor and auto-scrolling
• Clean separation between demo script data and presentation logic
• Proper cleanup and state management for restart functionality

This enhancement makes the setup process more approachable and demonstrates the professional quality of the MCP integration, helping users understand what to expect before they begin installation.

Description

Type of Change

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📝 Documentation update
• 🎨 Code style update (formatting, renaming)
• ♻️ Refactoring (no functional changes)
• ⚡ Performance improvement
• ✅ Test update
• 🔧 Configuration change
• 🔒 Security fix

Related Issue

Fixes #(issue number)

Changes Made

Testing

• Unit tests pass
• Integration tests pass (if applicable)
• Manual testing completed
• Tested with actual Loxone Miniserver

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published
• I have checked my code for potential security issues
• I have verified no credentials or sensitive data are included

Screenshots (if applicable)

Additional Notes