Router devices were inflating per-site subscriber counts because:
1. CGNAT IPs (100.64.0.0/10) in router ARP tables caused false matches
2. Routers see all traffic and shouldn't have subscribers attributed
3. Site totals were computed from raw links without filtering
Changes:
- Filter CGNAT (RFC 6598) IPs from device subscriber links
- Deduplicate accounts across devices by match method priority
- Detect routers via SNMP sys_descr and zero out per-device counts
- Derive site totals from filtered per-device impacts
- Add per-device Subs/MRR columns to site device tables
- Add device link fallback for sites without IP blocks
- Fix Gaiia sync case mismatch and execution order
- Improve device list toolbar button icons and tooltips