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>
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