Phase 2: Ping History Sparklines

Status: ⬜ Not Started Parent plan: PLAN.md Domain: fullstack

Tasks

Task 1: Create src/routes/api/apps/[id]/history/+server.ts — GET last 24h of healthcheck results
Task 2: Create src/lib/components/app/SparklineChart.svelte — tiny inline SVG sparkline (green=up, red=down)
Task 3: Update src/lib/components/widget/AppWidget.svelte — show sparkline below status badge
Task 4: Update src/lib/components/app/AppCard.svelte — show sparkline on app cards
Task 5: Calculate and display uptime percentage (last 24h)
Task 6: Update healthcheck service to retain last 288 records per app (24h at 5min intervals)
Task 7: Add cleanup job to prune old AppStatus records beyond retention period
Task 8: Add i18n translations (EN/RU)