Fix role propagation in ingestion pipeline and improve error handling

update the app.py file

feat(gradio): Add AI metadata display, latency prediction, and context-aware routing visualization

feat: Add LLM rule explanations, real-time visualizations, and fix analytics permissions

feat: Add reasoning visualizer, tool timeline, tenant heatmap, and expand analytics access to all roles

feat: restrict Editor role to Document Ingestion tab only in Gradio UI

feat: Enhance admin rules with file upload, drag-and-drop, chunk processing, and improved UI

imporvement in the UI in app.py

feat: add admin rules ingestion UI and persistent backend storage