JointJS Code Playground

JointJS-powered interactive playground skills — (1) code map visualizations for library/codebase architecture (supports local codebase analysis), (2) data explorer diagrams for database schemas and entity models (supports local schema files), both on a shared graph-explorer framework — (3) canvas builder for drag-and-drop interactive builders (SQL query, regex, API designer, data pipeline, cron, decision tree/rule engine, GitHub Actions, state machine, Docker Compose), (4) diff review with inlin