curl -X POST "https://router.example.com/v1/router/replay/req_9f3a2b/reroute" \
  -H "Authorization: Bearer <api-key>"

{
  "new_id": "req_7a4e1f",
  "decision": {
    "provider": "anthropic",
    "model": "claude-3-5-sonnet-20241022",
    "recipe": "semantic-router"
  },
  "response": {
    "id": "msg_01example",
    "choices": [
      {
        "index": 0,
        "message": {"role": "assistant", "content": "Hello again!"},
        "finish_reason": "stop"
      }
    ],
    "usage": {
      "prompt_tokens": 10,
      "completion_tokens": 8,
      "total_tokens": 18
    }
  }
}