PyVisAST Prerelease 0.5.0

New Features:

• Easter Egg: Hidden surprise!
• Progress Tracking: Real-time progress display for large project analysis
  • SSE-based progress streaming with percentage and current stage
  • Shows current file being analyzed and file count progress
  • Loading overlay with animated progress bar
• Code Sharing: Share code snippets via URL
  • Base64 encoded code in URL hash parameter
  • One-click copy share link
  • Auto-restore code from URL on page load
• Theme Switching: Enhanced dark/light theme toggle
  • Prominent toggle switch in header
  • Theme preference saved to localStorage
  • Moon icon turns black in light mode for visibility
• Export Reports: Export analysis results
  • HTML report with styled analysis summary
  • JSON export for raw analysis data