- 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
- Filter domain dropdown to show only main domains (exclude sub-domains)
- Add automatic CloudFlare DNS record deletion when domains/sub-domains are removed
- Improve DNS Records table display to match SSH Logins/Logs table styling
- Add loading states and proper table structure with ng-if conditions
- Update CSS to match activity-table styling with sticky headers