cim_summary/.planning/milestones/v1.0-phases/04-frontend/04-02-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	requirements-completed	duration	completed
04-frontend	02	ui	react typescript app-tsx alert-banner admin-monitoring	phase plan provides 04-frontend 01 AlertBanner component, AdminMonitoringDashboard component, AlertEvent type, adminService.getAlerts/acknowledgeAlert	Dashboard with AlertBanner above nav wired to adminService.getAlerts Monitoring tab replaced with AdminMonitoringDashboard Optimistic alert acknowledge with re-fetch fallback		added patterns Optimistic UI: filter local state immediately on acknowledge, re-fetch on API failure Admin-gated data fetching: isAdmin dependency in useEffect prevents unnecessary API calls AlertBanner above nav: conditional render before <nav> so banner shows on all tabs	created modified frontend/src/App.tsx	AlertBanner placed before <nav> element so it shows across all tabs, not scoped to monitoring tab handleAcknowledge uses optimistic update (filter state immediately) with re-fetch on failure Alert fetch gated by isAdmin — non-admin users never trigger getAlerts API call UploadMonitoringDashboard import removed entirely — replaced by AdminMonitoringDashboard	ALRT-03 ANLY-02 HLTH-01	2min	2026-02-24

Phase 04 Plan 02: Wire AlertBanner and AdminMonitoringDashboard into App.tsx Summary

AlertBanner wired above navigation in Dashboard with optimistic acknowledge, AdminMonitoringDashboard replacing UploadMonitoringDashboard in monitoring tab

Performance

• Duration: ~2 min
• Started: 2026-02-24T21:37:58Z
• Completed: 2026-02-24T21:39:36Z
• Tasks: 1 auto + 1 checkpoint (pending visual verification)
• Files modified: 1

Accomplishments

• Added AlertBanner and AdminMonitoringDashboard imports to frontend/src/App.tsx
• Added AlertEvent type import from adminService
• Added activeAlerts state (AlertEvent[]) inside Dashboard component
• Added useEffect gated by isAdmin to fetch alerts on mount
• Added handleAcknowledge callback with optimistic update (immediate filter) and re-fetch on failure
• Rendered AlertBanner above <nav> so it appears on all tabs when admin has active alerts
• Replaced UploadMonitoringDashboard with AdminMonitoringDashboard in monitoring tab
• Removed unused UploadMonitoringDashboard import
• npx tsc --noEmit passes with zero errors
• npm run build succeeds

Task Commits

Each task was committed atomically:

1. Task 1: Wire AlertBanner and AdminMonitoringDashboard into Dashboard - 6c345a6 (feat)

Files Created/Modified

• frontend/src/App.tsx - Added AlertBanner above nav, added alert state and optimistic acknowledge, replaced UploadMonitoringDashboard with AdminMonitoringDashboard in monitoring tab

Decisions Made

• AlertBanner is placed before the <nav> element (not inside a tab) so it appears globally on every tab when the admin has active critical alerts
• Optimistic update pattern: setActiveAlerts(prev => prev.filter(a => a.id !== id)) fires before the API call, restoring state on failure via re-fetch
• Alert fetch is fully gated on isAdmin in the useEffect dependency array — non-admin users never call adminService.getAlerts()
• UploadMonitoringDashboard import was removed entirely since AdminMonitoringDashboard replaces it

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None.

User Setup Required

Task 2 is a checkpoint:human-verify — admin must visually verify the monitoring tab and alert banner in the running application.

Next Phase Readiness

• Phase 4 is complete pending human visual verification (Task 2 checkpoint)
• All requirements ALRT-03, ANLY-02, HLTH-01 are now fully implemented frontend-to-backend

Self-Check: PASSED

• 04-02-SUMMARY.md exists at .planning/phases/04-frontend/04-02-SUMMARY.md
• frontend/src/App.tsx exists and modified
• Commit 6c345a6 exists in git log

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Phase: 04-frontend Completed: 2026-02-24