thesabear d9e8b9edf9 observability.md: full 7-step audit, first pass this session ...

1. Live-verify: journald persistent-storage config confirmed on two
   hosts (1G vs 500M cap, matches the doc's claim exactly), Alloy
   active confirmed across all 11 fleet hosts.
2. Fix KB: Alloy Agent Model was stale - version had moved from
   v1.18.0 to v1.18.1 on all 8 'newer' hosts since last checked,
   role's own default still unreconciled at 1.17.1. Fixed and
   confirmed via re-fetch.
3. Pulled the full Observability Pipeline tree: Alloy Agent Model,
   Log Flow, Metrics Flow.
4. Replaced both mermaid diagrams (broke this repo's Nextcloud-SVG
   convention) with real diagrams built through the proper round-trip.
5. Evidence: real journald config dumps, plus 3 real Grafana
   screenshots (host metrics dashboard, detailed Loki log stream
   showing job=technitium-dns/docker/system, and the fleet-wide log
   volume dashboard) - one screenshot round caught and fixed an
   unredacted internal IP before being used.
6/7. Compelling-proof test passes; sanitize-check clean.

2026-08-28 23:44:06 +03:00

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