Request to add xRuffKez CTI (Cyber Threat Intelligence) Blocklist

### Prerequisites

- [x] The blocklist is created specifically for DNS-level blockers;
- [x] The blocklist is regularly updated (at least 10 updates per month);
- [x] The blocklist is known and popular;
- [x] The blocklist satisfies [the repo requirements](https://github.com/AdguardTeam/HostlistsRegistry#-what-blocklists-can-be-added-here);

### Blocklist name

xRuffKez CTI (Cyber Threat Intelligence)

### Blocklist category

Malware&phishing blocking

### Homepage

https://github.com/DNSBunker/CTI

### Explanation

This blocklist adds a critical layer of protection by using the DNSBunker Threat Intelligence Framework (TIF) to catch active malware and phishing infrastructure. Unlike static lists that rely on slow, daily release cycles, this feed operates as a live, real-time intelligence source that actively harvests and analyzes new threats as they appear. By capturing short-lived malicious domains immediately, it provides AdGuard users with crucial zero-day security protection while maintaining a low footprint and minimizing the risk of false positives.