feat(certificates): implement data visualization analytics dashboard - #1324
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RUKAYAT-CODER merged 1 commit intoSep 1, 2026
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- Add getCertificateAnalytics() to certificate-service: returns totalIssued, totalActive, totalRevoked, 30-day issuedByDay trend, per-course breakdown, and avgCompletionToIssuanceDays; scoped by userId or global for admins - Add GET /api/certificates/analytics route with requireAuth, per-user rate limiting (60 req/15 min), audit logging, and Cache-Control: private max-age=30 - Add CertificateAnalyticsDashboard component: stat cards, 30-day AreaChart trend, horizontal BarChart per-course, Active vs Revoked PieChart; uses recharts, framer-motion, lucide-react; skeleton loader, error/retry state, aria-labels and sr-only data tables for full accessibility - Wire dashboard into certificates page below generation form; analyticsKey state forces re-fetch after each successful certificate issuance - Add 9 unit tests for getCertificateAnalytics covering zero counts, bucket shape/sort, scoping, revocation, latency, and today-bucket increment - Add 26 component tests for CertificateAnalyticsDashboard covering stat cards, chart regions, accessible tables, fetch lifecycle, error/retry, refresh, and ARIA landmark roles Closes rinafcode#472
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Add getCertificateAnalytics() to certificate-service: returns totalIssued, totalActive, totalRevoked, 30-day issuedByDay trend, per-course breakdown, and avgCompletionToIssuanceDays; scoped by userId or global for admins
Add GET /api/certificates/analytics route with requireAuth, per-user rate limiting (60 req/15 min), audit logging, and Cache-Control: private max-age=30
Add CertificateAnalyticsDashboard component: stat cards, 30-day AreaChart trend, horizontal BarChart per-course, Active vs Revoked PieChart; uses recharts, framer-motion, lucide-react; skeleton loader, error/retry state, aria-labels and sr-only data tables for full accessibility
Wire dashboard into certificates page below generation form; analyticsKey state forces re-fetch after each successful certificate issuance
Add 9 unit tests for getCertificateAnalytics covering zero counts, bucket shape/sort, scoping, revocation, latency, and today-bucket increment
Add 26 component tests for CertificateAnalyticsDashboard covering stat cards, chart regions, accessible tables, fetch lifecycle, error/retry, refresh, and ARIA landmark roles
Closes #472
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