Address review feedback from coderabbitai on hack/e2e-apps/etcd.bats: read the container name, metrics port, and Pod IP with the strict member selector (name+instance+managed-by) plus a Running-phase filter instead of the broad app.kubernetes.io/name=etcd, so .items[0] cannot resolve to a non-member or not-yet-running Pod. Also assert a non-empty Pod IP before the metrics probe.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Andrey Kolkov <androndo@gmail.com>