curl --request GET \
  --url http://localhost:3000/v1/products/{id}/demand

{
  "total_orders": 123,
  "total_quantity": 123,
  "recent_orders": 123,
  "velocity": 123,
  "trend": "up",
  "chart_data": [
    {
      "date": "<string>",
      "orders": 123
    }
  ]
}