List all clients

curl --request GET \
  --url https://api.caspen.com/v1/clients

{
  "data": [
    {
      "id": "<string>",
      "title": "<string>",
      "first_name": "<string>",
      "last_name": "<string>",
      "preferred_name": "<string>",
      "profession": "<string>",
      "email": "<string>",
      "date_of_birth": "<string>",
      "sex": "<string>",
      "gender_identity": "<string>",
      "pronouns": "<string>",
      "privacy_policy_consent": "<string>",
      "medications": [
        {
          "name": "<string>",
          "dosage": "<string>"
        }
      ],
      "allergies": [
        {
          "name": "<string>",
          "reaction": "<string>"
        }
      ],
      "intolerances": [
        "<string>"
      ],
      "emergency_contact_name": "<string>",
      "emergency_contact_phone": "<string>",
      "emergency_contact_relationship": "<string>",
      "notes": "<string>",
      "alert": "<string>",
      "referral_type_id": "<string>",
      "referral_description": "<string>",
      "referred_by_id": "<string>",
      "phone_number": "<string>",
      "phone_numbers": [
        {
          "id": "<string>",
          "code": "<string>",
          "number": "<string>",
          "type": "<string>"
        }
      ],
      "address": {
        "line1": "<string>",
        "line2": "<string>",
        "city": "<string>",
        "state": "<string>",
        "postal_code": "<string>",
        "country_code": "<string>"
      },
      "tag_ids": [
        "<string>"
      ],
      "created_at": "<string>"
    }
  ],
  "links": {
    "prev": "<string>",
    "next": "<string>"
  }
}