Release v0.1.2

Changed

• Web UI Home page enhancements: Enhanced Home page (previously Overview) with live scan statistics display showing real-time progress for active scans and detailed statistics for completed scans
• Improved scan state visibility: Added comprehensive state management for scans including in-progress, incomplete, stopped, and completed states with appropriate user guidance
• UI refinements: Updated navigation terminology ("Scans" → "Scan") and icons (magnifying glass for Scan, database icon for Explore) for clearer user intent
• Backend optimizations: Added ScanStats aggregation for efficient statistics queries with breakdowns by change type and item type