- Add stop() method to WebServer class - Store server instance for graceful shutdown - Add error handling in start_server() with user-friendly alert - Show warning dialog if server fails to start (e.g., port in use) - Stop server in closeEvent before application exit - Add status bar messages for server state 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>