{"message":"NL2SQL API Service","version":"2.0.0","endpoints":{"POST /process_query":"Process natural language query and persist to Mongo","GET /get_sql/{transcript_id}/{chat_id}":"Get generated SQL","GET /get_tables/{transcript_id}/{chat_id}":"Get extracted table data","GET /get_description/{transcript_id}/{chat_id}":"Get LLM description","GET /get_graph/{transcript_id}/{chat_id}":"Get graph payload (Plotly JSON or summary data)","GET /query_results/poll":"Poll aggregated assistant response payloads","GET /transcripts":"List transcripts","POST /transcripts":"Create a new transcript","GET /transcripts/{transcript_id}":"Get a transcript","GET /transcripts/{transcript_id}/chats/{chat_id}":"Get a chat"},"mongo":true}