v0.8.1 — correct the published verification status

The skill description, installer notes, and all three reference guides still said "mock-validated only, not yet verified against a live appliance" — the text the skill registries display — while reads, governed writes with audit and undo, the WebSocket transport, degraded-pool RCA, replication and cloud-sync had all been exercised against live TrueNAS SCALE 25.04 and 26 appliances.

They now point at docs/VERIFICATION.md, which records what was checked and what is still open (real S.M.A.R.T. on failing media). No code changes.