{"message":"OER Root Cause Analysis API","version":"1.0.0","status":"running","endpoints":{"docs":"/docs","redoc":"/redoc","analysis":"/analysis/query","task_status":"/analysis/task/{task_id}","cancel_task":"/analysis/task/{task_id} (DELETE)"},"description":"Unified natural language query endpoint with async Celery processing","architecture":"FastAPI + Celery + Redis"}