Adds VPN-aware leak handling, chain testing UX improvements, hardened Firefox launch/profile management, privacy/device hardening modules, and tray/status upgrades so the app is production-ready as the new baseline.
Co-authored-by: Cursor <cursoragent@cursor.com>
- _is_same_network: /16 subnet comparison catches NordVPN IP rotation
(exit_ip != real_ip exact-match missed same-VPN exits on rotated IPs)
- Leak now blacklists the entire dead chain, not just rotate
- GOST stderr/stdout -> gost.log (file, never deadlocks vs pipe)
with 512KB rotation; last 8 lines shown in UI when GOST dies
- read_gost_log_tail helper for live debugging
- Health check uses same subnet check for consistency
- 5 new subnet tests
Made-with: Cursor
