Add metrics prerequisites and verification steps to install and migration guides - #66
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Signed-off-by: marcopiraccini <marco.piraccini@gmail.com>
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Fixes to
MANUAL.mdandMIGRATING-v3-to-v4.mdafter a full test of the install and migration procedures./metrics/cadvisorand kube-state-metrics, with kube-state-metrics exporting theplatformatic.dev/monitorPod label, plus themetrics.k8s.ioresource metrics API required by the ICC HPA.container_cpu_usage_seconds_total, CPU limits/requests, label-filteredkube_pod_labels), and a matching troubleshooting entry in the manual for empty CPU metrics.helm upgradewith--wait --timeout 10min both guides so a failed rollout surfaces instead of the command returning immediately.cooldowncomments:300preserves the chart v3 behavior, the v4 default is15, and the value gates scale-up only (scale-down uses a shorter derived 60-180s cooldown).