output: revisit estate rollup outputs — cross-cluster visual summary, heatmaps, trend tracking

[kristopherjturner]

Problem

The v2.5.0 estate rollup produces estate-rollup.json, estate-summary.html, and powerbi/estate-clusters.csv. The HTML is a basic table; there's no heatmap, no trend view, no drilldown. Multi-cluster operators need an actually-useful estate dashboard.

Goals

Upgrade estate outputs so a single file communicates the health of an entire estate and lets the reader drill in.

Scope

1. Estate summary HTML redesign
   • Cross-cluster heatmap (rows = clusters, columns = WAF pillars; color = score)
   • Capacity heatmap (rows = clusters, columns = dimensions)
   • Top-10 findings across the estate with affected cluster list
   • Trend charts if historical estate-rollup.json files are present
2. Drill-down — clicking a cluster in the summary opens that cluster's executive-summary.html (file:// links into the per-cluster subfolders)
3. Estate manifest schema — document estate-rollup.json structure with a JSON Schema
4. CSV expansion — add per-pillar columns, capacity columns, cost/AHB columns per cluster
5. Estate SVG — a cross-cluster topology diagram showing all clusters, their sizes, and connectivity
6. Estate PPTX — estate-level presentation deck alongside per-cluster decks
7. Diff between estate runs — given two estate-rollup.json files, show cluster-level health delta

Research inputs

• VMware vRealize Operations multi-cluster summary views
• Datadog infrastructure host map
• Nutanix Prism Central multi-cluster dashboard
• Azure Arc estate view in the portal

Acceptance criteria

• Estate heatmap in HTML summary
• Drilldown links from estate to per-cluster reports
• Estate JSON Schema committed
• Estate PPTX deck
• Estate SVG topology diagram
• Sample outputs under docs/samples/outputs/estate/

[kristopherjturner]

Tracked in Azure DevOps: https://dev.azure.com/hybridcloudsolutions/Azure%20Local%20Ranger/_workitems/edit/305