curl -X PATCH "https://api.scanova.io/custom-domain/42/" \
  -H "Authorization: 401f7ac837da42b97f613d789819ff93537bee6a" \
  -H "Content-Type: application/json" \
  -d '{
    "root_action": "url_redirect",
    "redirect": "https://example.com/landing"
  }'

{
  "id": 42,
  "domain": "https://links.example.com",
  "is_default": false,
  "disable_slug_case": false,
  "txt_value": "scanova-verification=abc123...",
  "is_txt_verified": true,
  "is_cname_verified": true,
  "is_migrated": false,
  "dns_provider": { "name": "Cloudflare", "placeholders": { "cname": { "content": { "label": "Target" } } } },
  "txt_error": null,
  "cname_error": null,
  "root_action": "url_redirect",
  "redirect": "https://example.com/landing",
  "template": null,
  "protocol": "https",
  "remove_qr_query": false,
  "cname_target": "shortcname.scanova.io",
  "domain_connect_supported": false,
  "domain_connect_checked_at": null,
  "created": "2026-09-08T10:00:00Z",
  "modified": "2026-09-08T10:00:00Z"
}