hive-c0re is a host unit that wired no CA trust at all. Harmless today
-- every endpoint it is handed defaults to plain http or loopback, so
nothing verifies a certificate -- and latent for the split-host shape the
options invite: `swarm.matrix.apiUrl`'s own example is an https URL, and
pointing it or `statusPublish.natsUrl` at another hive's gateway means
verifying a leaf signed by a CA generated at runtime.
Unlike the other consumers of this helper, hive-c0re already makes a
public-TLS call -- the OTEL exporter reaches whatever `otel.endpoint`
names. `SSL_CERT_FILE` replaces the trust store rather than adding to it,
so the bundle being system CAs + hive CA is what keeps that path working;
narrowing it to the hive CA alone would fix a case nobody hits yet and
break one that runs today.
3efeffd95f