Retrieve promotion details

curl --request GET \
  --url https://services.commercengine.dev/api/v1/x2yh61zw4k/admin/offer/promotions/{id} \
  --header 'Authorization: Bearer <token>'

{
  "message": "<string>",
  "success": true,
  "content": {
    "promotion": {
      "id": "<string>",
      "name": "<string>",
      "description": "<string>",
      "promotion_type": "discount",
      "details": {
        "discount_type": "percentage",
        "discount_percent": 0,
        "fixed_discount_amount": 0,
        "max_discount_amount": 123,
        "products": [
          {
            "product_id": "<string>",
            "minimum_price": 0,
            "minimum_value": 0,
            "minimum_quantity": 0
          }
        ],
        "category_id": [
          "<string>"
        ]
      },
      "tags": [
        "<string>"
      ],
      "active": true,
      "status": "draft",
      "customer_eligibility": "all",
      "customer_id": [
        "<string>"
      ],
      "segment_id": [
        "<string>"
      ],
      "applies_to_product": "all",
      "has_redemption_limit": false,
      "redemption_limit": 0,
      "redemption_count": 123,
      "require_minimum_order_total": false,
      "minimum_order_total": 0,
      "for_first_time_customer_only": false,
      "can_be_used_with_promotion": false,
      "starts_at": "2023-11-07T05:31:56Z",
      "expires_at": "2023-11-07T05:31:56Z",
      "created_at": "2023-11-07T05:31:56Z",
      "modified_at": "2023-11-07T05:31:56Z",
      "terms_and_conditions": [
        "<string>"
      ]
    }
  }
}