The /api/v1/status endpoint previously returned only {"status": "ok"}.
It now returns comprehensive monitoring state including:
- Summary counts (domains, hostnames, ports, certificates with breakdown)
- Full domain state with nameservers and last check timestamps
- Hostname state with per-nameserver DNS records and status
- Port state with open/closed status and associated hostnames
- TLS certificate state with CN, issuer, expiry, SANs, and status
- Last updated timestamp for the overall monitoring state
All data is derived from the existing state snapshot, providing
operational visibility without exposing configuration details
like webhook URLs or API tokens.
