expand container monitoring functionality (#928)

- Add new /containers route with virtualized table showing all containers across systems
- Implement container stats collection (CPU, memory, network usage) with health status tracking
- Add container logs and info API endpoints with syntax highlighting using Shiki
- Create detailed container views with fullscreen logs/info dialogs and refresh functionality
- Add container table to individual system pages with lazy loading
- Implement container record storage with automatic cleanup and historical averaging
- Update navbar with container navigation icon
- Extract reusable ActiveAlerts component from home page
- Add FooterRepoLink component for consistent GitHub/version display
- Enhance filtering and search capabilities across container tables

internal/site/src/components/active-alerts.tsx

@@ -0,0 +1,85 @@
+import { alertInfo } from "@/lib/alerts"
+import { $alerts, $allSystemsById } from "@/lib/stores"
+import type { AlertRecord } from "@/types"
+import { Plural, Trans } from "@lingui/react/macro"
+import { useStore } from "@nanostores/react"
+import { getPagePath } from "@nanostores/router"
+import { useMemo } from "react"
+import { $router, Link } from "./router"
+import { Alert, AlertTitle, AlertDescription } from "./ui/alert"
+import { Card, CardHeader, CardTitle, CardContent } from "./ui/card"
+
+export const ActiveAlerts = () => {
+	const alerts = useStore($alerts)
+	const systems = useStore($allSystemsById)
+
+	const { activeAlerts, alertsKey } = useMemo(() => {
+		const activeAlerts: AlertRecord[] = []
+		// key to prevent re-rendering if alerts change but active alerts didn't
+		const alertsKey: string[] = []
+
+		for (const systemId of Object.keys(alerts)) {
+			for (const alert of alerts[systemId].values()) {
+				if (alert.triggered && alert.name in alertInfo) {
+					activeAlerts.push(alert)
+					alertsKey.push(`${alert.system}${alert.value}${alert.min}`)
+				}
+			}
+		}
+
+		return { activeAlerts, alertsKey }
+	}, [alerts])
+
+	// biome-ignore lint/correctness/useExhaustiveDependencies: alertsKey is inclusive
+	return useMemo(() => {
+		if (activeAlerts.length === 0) {
+			return null
+		}
+		return (
+			<Card>
+				<CardHeader className="pb-4 px-2 sm:px-6 max-sm:pt-5 max-sm:pb-1">
+					<div className="px-2 sm:px-1">
+						<CardTitle>
+							<Trans>Active Alerts</Trans>
+						</CardTitle>
+					</div>
+				</CardHeader>
+				<CardContent className="max-sm:p-2">
+					{activeAlerts.length > 0 && (
+						<div className="grid sm:grid-cols-2 lg:grid-cols-3 2xl:grid-cols-4 gap-3">
+							{activeAlerts.map((alert) => {
+								const info = alertInfo[alert.name as keyof typeof alertInfo]
+								return (
+									<Alert
+										key={alert.id}
+										className="hover:-translate-y-px duration-200 bg-transparent border-foreground/10 hover:shadow-md shadow-black/5"
+									>
+										<info.icon className="h-4 w-4" />
+										<AlertTitle>
+											{systems[alert.system]?.name} {info.name().toLowerCase().replace("cpu", "CPU")}
+										</AlertTitle>
+										<AlertDescription>
+											{alert.name === "Status" ? (
+												<Trans>Connection is down</Trans>
+											) : (
+												<Trans>
+													Exceeds {alert.value}
+													{info.unit} in last <Plural value={alert.min} one="# minute" other="# minutes" />
+												</Trans>
+											)}
+										</AlertDescription>
+										<Link
+											href={getPagePath($router, "system", { id: systems[alert.system]?.id })}
+											className="absolute inset-0 w-full h-full"
+											aria-label="View system"
+										></Link>
+									</Alert>
+								)
+							})}
+						</div>
+					)}
+				</CardContent>
+			</Card>
+		)
+	}, [alertsKey.join("")])
+}