List Client Rule Fields

curl https://api.clustr-ai.com/api/public/client-companies/rule/attio/fields \
  -H "Authorization: Bearer YOUR_API_KEY"

{
  "success": true,
  "data": {
    "fields": [
      {
        "name": "customer_status",
        "label": "Customer status",
        "type": "single_select",
        "options": [
          { "value": "active", "label": "Active" },
          { "value": "churned", "label": "Churned" }
        ]
      },
      { "name": "is_customer", "label": "Is customer", "type": "boolean", "options": [] }
    ],
    "dealStages": [
      { "id": "8f2c...", "title": "Won", "archived": false },
      { "id": "1a7d...", "title": "Lost", "archived": false }
    ]
  }
}