- Update routes6.d structure: replace ogw with gre group (table 222)
- Fix NETMAP prefix /120 → /118, show igw as gateway (not egw)
- Add OpenVPN NAT66 and Xray L7 proxy sections
- Update ip rule show to include gre (pref 2220), add IPv6 packet flow
- Document --verbose flag and partial route loss detection (1% tolerance)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>