CIPHER v5.0.1 Reliability Hotfix

Highlights

• Single-host authoritative runtime by default (cipher up auto-joins LAN host when available)
• Best-effort cipher.local with deterministic host-IP fallback
• mDNS hardening with discovery health surfaced in /api/discovery
• Authoritative sync lock to prevent split-brain task mutations
• Shared ASCII banner for install + launch (--quiet/CIPHER_NO_BANNER=1 supported)

New/Updated Interfaces

• CLI: cipher up --host, cipher up --join <ip-or-url>, cipher --quiet
• HTTP /api/discovery: join.localhost, join.mdns, join.ip, mdns.status, mdns.error

Validation

• npm run build
• npx tsc --noEmit
• npm run test
• node scripts/smoke/multidevice-sync.js