The aggregate containers_not_running event carried service=None, which the
observer skips when building service state and incidents — stability-agent's
flagship signal never opened an incident (recon D15). Emit one event per
non-running container instead, tagged with the compose service name from the
com.docker.compose.service label (same pattern as node-agent's
_canonical_container_name fix from May), falling back to the container name
with Docker's stale-state hash prefix stripped; never crashes on unlabeled
containers. 'created' compose tracking artifacts are skipped — they are not
running services and would open fake incidents now that the event is
actionable.
Adds the service's first test suite covering the label-extraction helper.
Smoke-run performed with runtime paths redirected (no docker build, authoring
only): main loop runs, service names resolve on live solaria containers.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
