List Document Collection templates

curl 'https://api.expiryedge.com/v2/collection-templates?status=active&limit=50' \
  -H "Authorization: Bearer $EXPIRYEDGE_API_KEY"

{
  "data": [
    {
      "id": "tem_123",
      "organization_id": "org_123",
      "name": "Example name",
      "description": "string",
      "status": "active",
      "pages": [
        {
          "id": "tem_123",
          "title": "string",
          "order": 1,
          "description_html": "string",
          "sections": []
        }
      ],
      "intro_email": {},
      "schema_version": 1,
      "created_by": "string",
      "created_by_name": "Example name"
    }
  ],
  "next_cursor": "string",
  "has_more": true
}