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/router.tsx

@@ -2,6 +2,7 @@ import { createRouter } from "@nanostores/router"
 
 const routes = {
 	home: "/",
+	containers: "/containers",
 	system: `/system/:id`,
 	settings: `/settings/:name?`,
 	forgot_password: `/forgot-password`,