Get version detail

{
    "success": true,
    "message": "Version fetched",
    "payload": {
        "version_number": 3,
        "status": "live",
        "outlet_id": 101,
        "published_by_outlet_id": 101,
        "published_at": "2026-04-28T14:00:00+05:30",
        "version_notes": "Switched to GPT-4o for better Tamil support",
        "is_revert": false,
        "reverted_from_version": null,
        "created_at": "2026-04-28T13:55:00+05:30",
        "config_snapshot": {
            "agent_name": "Formi Sales Bot",
            "main_prompt": "You are a helpful sales assistant...",
            "agent_configuration": {
                "LLM": {
                    "conversation_llm": {
                        "model_name": "gpt-4o",
                        "temperature": 0.7
                    }
                },
                "TTS": {
                    "provider": "elevenlabs",
                    "voice_id": "abc123"
                },
                "STT": {
                    "provider": "deepgram",
                    "language": "en-IN"
                },
                "welcome_message": "Hello! How can I help you today?"
            },
            "state_machine": {
                "states": [
                    {
                        "state_id": 10,
                        "name": "greeting_state",
                        "template_id": 3,
                        "state_prompt": "",
                        "variables": {
                            "tone": "friendly"
                        }
                    }
                ],
                "edges": [
                    {
                        "edge_id": 42,
                        "from_node": 10,
                        "to_node": 11,
                        "prompt": "If the user says goodbye, transition.",
                        "transition_metadata": {}
                    }
                ]
            },
            "connection_config": {}
        },
        "change_summary": {
            "changed": {
                "agent_configuration.LLM.conversation_llm.model_name": {
                    "old": "gpt-4-turbo",
                    "new": "gpt-4o"
                }
            },
            "unchanged": [
                "agent_name",
                "main_prompt",
                "connection_config"
            ]
        }
    }
}