Retrieve all coupons

curl --request GET \
  --url https://staging.api.commercengine.io/api/v1/{store_id}/storefront/offer/coupons \
  --header 'Authorization: Bearer <token>'

{
  "message": "<string>",
  "success": true,
  "content": {
    "coupons": [
      {
        "code": "<string>",
        "name": "<string>",
        "description": "<string>",
        "coupon_type": "discount",
        "tags": [
          "<string>"
        ],
        "details": {},
        "has_redemption_limit": true,
        "redemption_limit": 123,
        "redemption_count": 123,
        "require_minimum_order_total": true,
        "minimum_order_total": 123,
        "for_first_time_customer_only": true,
        "terms_and_conditions": [
          "<string>"
        ],
        "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"
      }
    ]
  }
}