/api/v1/status now gives `error` for each nameserver entry and
certificate entry whose status is `error`, copied from the state, which
already kept it. The dashboard shows that reason in place of the records
for a failed nameserver, which used to show the same `-` as one that
answered with no records, and across the CN, issuer and expiry cells
for a failed certificate. The dashboard stylesheet is a trimmed build,
so the new markup uses only classes the page already had. README Web
Dashboard and HTTP API say so.
Model: opus-5-5
