9f87ff87e1
Labels the container into `Toolchain`, an existing group under the existing Toolchain tab -- "the plumbing", which is where a message bus belongs. Confirmed live: Homepage's API now returns it. I had previously recorded in this file that no group fitted, which was wrong. That conclusion came from a grep over the layout block that missed the nested groups, and it went into a comment as though it were a finding. The group was there the whole time. Labels bind at container creation, so this deployed with `up -d` rather than `restart`; a restart leaves the old labels and the dashboard keeps showing what was there before. nh3-docker is already a discovered host in homepage's docker.yaml as `nh3-pfi-docker`, so the label alone is enough -- adding a services.yaml entry as well would render the card twice. althing-chamber on ana-docker also carries Toolchain labels and is a separate service per the operator. Left alone.