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docs(kpi): K17 — #26 KpiHistory component doc + README/CLAUDE + cross-component interactions + completion-design update

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Joseph Doherty
2026-06-17 20:52:12 -04:00
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docs/requirements/Component-CentralUI.md
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@@ -249,3 +249,4 @@ Per-leaf alarm rendering (leaf nodes are individual conditions for native alarms
- **Notification Outbox**: Provides notification delivery KPIs and serves the `Notifications` table queries and Retry/Discard actions for the Notification Outbox page.
- **Site Call Audit**: Serves the `SiteCalls` table queries and relays Retry/Discard actions to sites for the Site Calls page.
- **Audit Log (#23)**: Serves all `AuditLog` table queries (filter / grid / drilldown / CSV export) for the new Audit Log page and the drill-in surfaces on Notifications, Site Calls, External Systems, Inbound API keys, Sites, and Instances. Payload capture, redaction, and per-site authorization follow the Audit Log component's "Payload Capture Policy" and "Security & Tamper-Evidence" sections.
- **KPI History (#26)**: The Central UI hosts the `KpiHistoryQueryService` (scoped-repository read over `IKpiHistoryRepository.GetRawSeriesAsync` + `KpiSeriesBucketer`, dual-ctor test seam) and renders the reusable custom-SVG `KpiTrendChart` fed by it. Trend sections appear on the Notification Outbox, Site Calls, and Audit Log pages and in a per-site panel on the Health Monitoring dashboard; a query failure degrades to an unavailable-chart placeholder rather than breaking the page. See [Component-KpiHistory.md](Component-KpiHistory.md).