- Refactored UserMenu debug panel delete handler to match ThoughtGalaxy pattern - Added proper error handling with Mantine notifications - Added loading state management during delete operations - Created /api/nodes/debug endpoint for development debugging - Cleaned up debug logging from DELETE endpoint The debug panel now uses the same delete pattern as ThoughtGalaxy for consistency, with proper error notifications and state updates. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>