Dorian
d341585bed
fix: Phase 8 — mesh hardening: atomic writes, unwrap elimination, GPS opt-out
- Ratchet state: atomic write via tmp + rename to prevent corruption on crash
- Block header decode: replaced .unwrap() with proper error handling on
untrusted network data (was a crash vector from malicious peers)
- Shutdown channel: replaced .unwrap() with .ok_or_else() error propagation
- Dead man's switch GPS: default changed to opt-out (auto_include_gps=false)
- Alert signature verification: already covered by Phase 4 envelope checks
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>