- Create tooltip once during initialization instead of on every render
- Properly hide tooltip when clicking nodes
- Add mousemove handler to follow cursor smoothly
- Reduce transition duration for snappier response
- Add z-index to ensure tooltip appears above other elements
This fixes the issue where tooltips would persist or stack up
when navigating through the dependency graph.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>