{"message":"RAG Pipeline API with Hierarchical Summarization","version":"2.0","endpoints":["/api/health","/api/config","/api/ask-question","/api/upload-and-process","/api/cases","/api/conversations","/api/users/me","/api/summary/{user_id}"],"features":["Hierarchical summarization","Case management","Conversation history","RAG-based Q&A with citations","On-demand summary generation"]}