feat: daemon health panel, brand-rail status chips, user timezone selector

- Health API now surfaces Docker /info + /version (version, platform,
  kernel, container/image counts, storage driver, memory, latency) and
  NPM aggregates (proxy host total, managed-by-Tinyforge count, access
  lists, certificates, endpoint URL).
- Docker/NPM indicators moved out of the sidebar footer and into a
  compact mono-styled rail directly under the Tinyforge brand title,
  with pulse/fault animations and click-to-expand error hints.
- New SystemDaemonsCard on the dashboard: two terminal-styled panels
  (Docker Engine + Proxy) with a running/paused/stopped stacked bar,
  key-value diagnostics, and a total-vs-managed proportion meter on
  the proxy-hosts tile.
- Shared health store so the sidebar and dashboard share a single
  30 s poll instead of duplicating traffic.
- User-facing timezone preference with auto-detect fallback; all
  dates across projects, sites, stacks, settings, backup, event log
  and stale containers now render through \$fmt.date / \$fmt.datetime.
- en/ru translations for both features.

web/src/routes/settings/+page.svelte

@@ -4,6 +4,7 @@
 	import FormField from '$lib/components/FormField.svelte';
 	import ConfirmDialog from '$lib/components/ConfirmDialog.svelte';
 	import EntityPicker from '$lib/components/EntityPicker.svelte';
+	import TimezoneSelector from '$lib/components/TimezoneSelector.svelte';
 	import { toasts } from '$lib/stores/toast';
 	import { t } from '$lib/i18n';
 	import { IconLoader, IconCopy, IconRefresh, IconX, IconInfo } from '$lib/components/icons';
@@ -274,6 +275,8 @@
 			</div>
 		</div>
 	{:else}
+		<TimezoneSelector />
+
 		<div class="rounded-xl border border-[var(--border-primary)] bg-[var(--surface-card)] p-6 shadow-[var(--shadow-sm)]">
 			<h2 class="mb-4 text-lg font-semibold text-[var(--text-primary)]">{$t('settingsGeneral.globalConfig')}</h2>
 			<div class="grid grid-cols-1 gap-4 md:grid-cols-2">