There are two otel options one word apart: swarm.otel is the swarm's
collector, hyperhive.otel is the per-hive tier that ships upstream and
never reads scrapeTargets. The gate went through a let binding declared
800 lines from its use, so which one it referred to was not visible where
it mattered — mara had to ask.
Gating the wrong one is not a build error. It is a target that is either
always declared or never declared, and both look like working config.
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