Add live stats page with metrics sampling and route split

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- New sandbox_metrics_snapshots table sampled every 10s (60-day retention)
- Background MetricsSampler goroutine wired into control plane startup
- GET /v1/sandboxes/stats?range=5m|1h|6h|24h|30d endpoint with adaptive
  polling intervals; reserved CPU/RAM uses ceil(paused/2) formula
- StatsPanel component: 4 stat cards + 2 Chart.js line charts (straight
  lines, integer y-axis for running count, dual-axis for CPU/RAM)
- Range filter persisted in URL query param; polls update data silently
  (no blink — loading state only shown on initial mount)
- Split /dashboard/capsules into /list and /stats sub-routes with shared
  layout; capsuleRunningCount store syncs badge across routes
- CreateCapsuleDialog extracted as reusable component

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This commit is contained in:

Rafeed M. Bhuiyan

2026-03-25 14:41:05 +06:00

parent 2349f585ae

commit fee66bda50

21 changed files with 2059 additions and 1023 deletions

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frontend/src/routes/dashboard/capsules/+page.svelte

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