Part of #5081 (slice S0-1a). An agent's closure no longer depends on the
name or domain of the hive that renders it.
- hive-priv writes /etc/hyperhive-hive-facts (HYPERHIVE_HIVE_NAME,
HYPERHIVE_HIVE_DOMAIN) into the container from the same WriteNspawnFlags
call that writes /etc/hyperhive-bridge-dns. hive-c0re passes the values
from its own unit env. hive-priv refuses a value outside [A-Za-z0-9._-].
- A systemd environment generator in the agent (hive-facts.nix) loads the
file into the container manager's environment, so every unit sees it,
as with the systemd.globalEnvironment entries the render used to emit.
It also builds CLAUDE_REMOTE_CONTROL_SESSION_NAME_PREFIX
(<hive>-<agent>), which left claude's managed settings.
- meta.rs stops forwarding HYPERHIVE_HIVE_{NAME,DOMAIN} and stops setting
services.hyperhive.agent.hiveName. The option is removed (both
spellings now fail with a removal message).
- otel.nix drops the agent's hive= resource label. The swarm collector
upserts hive per authenticated receiver (swarm-otel.nix resource/<h>,
on both the metrics and logs pipelines), so stored series keep it.
The otel first hop, otel enable and the dashboard port are still baked;
they are S0-1b.
c87a4d2c1a