Capacity planning#97
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elizabetheonoja-art merged 2 commits intoJul 18, 2026
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Add capacity planning forecast dashboard
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Motivation
Provide a deterministic, client-side capacity planning forecast based on historical hourly usage to help capacity planning and alerting for the usage dashboard (issue #89).
Expose a clear risk classification and recommended capacity so operators can route expansion and incident response through existing blue-green/canary processes.
Keep the runtime path fast and testable by implementing a pure buildCapacityPlan function and wiring it into the live dashboard example.
Description
Add a capacity planning computation in usage-dashboard/src/lib/capacityPlanning.ts that normalizes usage into daily kWh, derives a growth trend, applies safety/reserve margins, projects a configurable 30-day window, and assigns low|medium|high|critical risk levels.
Add a UI panel usage-dashboard/src/components/CapacityPlanningPanel.tsx that displays utilization, growth rate, breach forecast, recommended capacity, and a compact progress visualization.
Wire the plan into the dashboard by updating usage-dashboard/src/app/page.tsx and extend the TypeScript types in usage-dashboard/src/types/index.ts with CapacityPlan and related interfaces.
Add runbook documentation docs/CAPACITY_PLANNING_RUNBOOK.md describing architecture, alert policy, monitoring, and blue-green/canary rollout guidance, and remove the external Google font import and obsolete Next config in usage-dashboard/src/app/layout.tsx and usage-dashboard/next.config.js so production builds are deterministic.
Testing
Ran TypeScript checks with cd usage-dashboard && npx tsc --noEmit, which completed successfully.
Ran the production build with cd usage-dashboard && npm run build, which initially failed due to fetching the external Google font but succeeded after removing the external font import and updating next.config.js.
After fixes, re-ran cd usage-dashboard && npm run build and the build completed successfully (pages compiled and static routes generated).
Closes #89