curl --request GET \
  --url https://api.cashful.africa/api/canary/customers/{id}/payment-methods \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "pm_001",
      "customerId": "customer_789",
      "type": "card",
      "brand": "visa",
      "last4": "4242",
      "expiryMonth": 12,
      "expiryYear": 2025,
      "isDefault": true,
      "createdAt": "2025-01-15T10:30:00.000Z",
      "updatedAt": "2025-01-15T10:30:00.000Z"
    }
  ],
  "pagination": {
    "limit": 50,
    "offset": 0,
    "total": 1,
    "hasMore": false
  }
}