- Add ghost rendering at original position during node drag - Implement real-time drag preview with Update() for immediate rendering - Add visual feedback: shadow effects, cyan borders, pulse animations - Improve pan movement accuracy with zoom level compensation (PointF precision) - Add mouse capture for stable drag operations - Fix coordinate precision loss by changing _panOffset from Point to PointF 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>