- Delete record: confirmation dialog and local backup before delete
- Clear all DNS records: double confirmation (zone name), local backup, Restore button
- Export/Import DNS records (JSON) for zone
- Check orphan DNS: find A/AAAA/CNAME for hostnames no longer in panel, remove with backup
- Backend: getExportRecordsCloudFlare, clearAllDNSRecordsCloudFlare, importDNSRecordsCloudFlare, getStaleDNSRecordsCloudFlare, removeStaleDNSRecordsCloudFlare
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