Checks:
1. Internet reachability (gates all remaining checks)
2. DDNS sync — public IP vs Cloudflare DNS record, restarts Gmer4Lfe.com container on mismatch
3. Tailscale status — notify only, no auto-restart
4. NPM proxy — external curl to https://gmer4lfe.com, 2-strike system before NginxProxyManager restart
Config: master.conf NETWORK_WATCHDOG_* block, host1.conf HOST1_NETWORK_WATCHDOG_* values
Added to SYSTEM_WATCHDOG_SCRIPTS — called by system_watchdog.sh each cycle
Fix: storage_watchdog.sh was calling get_strikes/set_strikes without defining them —
added local definitions (same pattern as docker_watchdog.sh and stability_watchdog.sh)