v1.9.0 — Verdict-First Overview: Operational Memory, Finally Visible

The Overview page no longer opens with a KPI grid — it opens with a written verdict.
New:

Situation Briefing — a two-sentence cluster assessment ("what's wrong, what's improved") backed by real incident data
Operational Memory scoreboard — total seen, resolved, reopened, accelerating, longest-running incident, most unstable namespace
What's Changed Since Last Scan — shows only what happened since your last visit
Top 5 Things To Fix — now shows first-detected age, reopen count, trend; routes correctly (single incident → Investigate, multi-pod group → filtered Incidents view)
Cluster / Namespace / Security health cards, capped with "View all" links
Bottom strip shows real trend deltas ("+8 since yesterday") on cost, waste, and scores

Fixed: Top 5 links were hardcoded to War Room regardless of the issue; the verdict could disagree with Top 5 about the worst issue; a few UI/data inconsistencies found via live testing.
No changes to War Room, Incidents, or Investigation. Standard helm upgrade — no new config required.