curl --request GET \
  --url https://api.heymilo.ai/api/v2/design-templates \
  --header 'X-API-KEY: <api-key>'

{
  "data": [
    {
      "id": "<string>",
      "name": "<string>",
      "template_type": "<string>",
      "design_config": {},
      "created_at": 123,
      "updated_at": 123,
      "object": "design_template"
    }
  ],
  "pagination": {
    "has_more": true,
    "total_count": 123,
    "url": "<string>"
  }
}