Add Pyroscope server (StatefulSet on ringtail k3s) and Alloy profiling
DaemonSet with pyroscope.ebpf collection. Grafana datasource with
traces-to-profiles cross-linking. Docs updated across observability
reference card, Alloy, Grafana, apps registry, and README.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
