Execute Query

{  "request_id": "string",  "created_at": "2019-08-24T14:15:22Z",  "answer": "string",  "thread_id": "string",  "status": "delivered",  "confidence": {    "score": 0,    "band": "high",    "tool_confidence_score": 0  },  "guardrails": [    {      "guardrail_id": "string",      "name": "string",      "category": "string",      "compliant": true,      "reasoning": "string"    }  ],  "citations": [    {      "source": "string",      "title": "string",      "document_id": "string",      "content_pack_id": "string",      "score": 0    }  ],  "source_type": "qna",  "audit_ref": "string",  "model_info": {    "refinement_model": "string",    "summarization_model": "string",    "guardrail_model": "string"  },  "processing": {    "time_ms": 0,    "model_tier": 0,    "degraded_mode": false,    "routing_source": "string"  },  "agent_context": {    "suggested_next_action": "string",    "answer_format": "structured_text",    "blocked_reason": "string",    "knowledge_grounded": true,    "source_type": "string"  }}