Reworks the Server-Details history graph from a static Livewire-rendered SVG into a
self-contained Alpine island fed by a JSON endpoint, addressing the feedback:
- Smooth Catmull-Rom curves instead of angular segments.
- Continuous line with an area gradient fill; the line breaks ONLY on a real outage
(delta-t > 2.5x the bucket), not on every empty bucket — no more dropouts.
- Hover crosshair + tooltip (time + CPU/MEM/DISK at the point).
- Instant client-side range switching (1h/24h/7d/30d) via
GET /servers/{server}/history.json — no Livewire round-trip.
- X-axis labels moved below the plot (no longer overlapping the 0 gridline).
MetricHistory::series() now returns only non-empty buckets plus from/now/bucket. The
chart wrapper is wire:ignore so the parent's 10s poll never clobbers the Alpine state;
the island self-refreshes every 60s. The old Livewire range logic is removed.
Codex review: clean (auth-gated route, range clamped, numeric-only JSON, guarded hover
bindings, R3/R4-compliant). Browser-verified: smooth curves, area fill, working tooltip
+ crosshair, instant range switch, zero console errors. 446 tests green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
A CPU/RAM/Disk history graph over selectable ranges (1h/24h/7d/30d) on the server
detail page, backed by a persisted time series (the live 15s view stays cache-only).
- metric_samples table (server_id cascade, cpu/mem/disk %, load, sampled_at indexed).
- clusev:sample-metrics (scheduled every minute, mirrors clusev:wg-sample): persists
one row per server from the cached live reading, prunes beyond --retention (30d).
- MetricHistory::series() buckets + averages samples for a window; empty buckets stay
null so the chart shows gaps, not fabricated values.
- Servers/Show: range selector + a gap-aware SVG line chart (theme-token strokes,
R3-compliant, mirrors the dashboard chart). historyRange is clamped via setRange()
and the updatedHistoryRange() hook (it's a public, client-settable property).
Codex review: fixed a right-edge bucket off-by-one, clamped percentages on write, and
guarded the public range property against direct client values. Browser-verified: the
chart renders with data, range buttons, legend and gaps, zero console errors. 447
tests green, pint clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
boban