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/projects/+page.svelte

@@ -2,6 +2,7 @@
 	import type { Project, EntityPickerItem } from '$lib/types';
 	import * as api from '$lib/api';
 	import { t } from '$lib/i18n';
+	import { fmt } from '$lib/format/datetime';
 	import { IconPlus, IconSearch, IconLoader } from '$lib/components/icons';
 	import FormField from '$lib/components/FormField.svelte';
 	import SkeletonTable from '$lib/components/SkeletonTable.svelte';
@@ -284,7 +285,7 @@
 								{project.registry || '-'}
 							</td>
 							<td class="whitespace-nowrap px-6 py-4 text-sm text-[var(--text-secondary)]">
-								{new Date(project.created_at).toLocaleDateString()}
+								{$fmt.date(project.created_at)}
 							</td>
 							<td class="whitespace-nowrap px-6 py-4 text-right text-sm">
 								<a href="/projects/{project.id}" class="text-[var(--text-link)] hover:text-[var(--text-link-hover)] transition-colors">