feat: unify recovery, updates, and schedules under Maintenance

src/routes/settings/+page.svelte

@@ -3,7 +3,6 @@
     import { availableTimeZones, DEFAULT_TIME_ZONE } from '$lib/time-zone.js';
     import { onMount } from 'svelte';
     import SectionHeader from '$ui/components/primitives/SectionHeader.svelte';
-    import PlutoniumMaintenance from '$ui/components/PlutoniumMaintenance.svelte';
     let exampleDate = $state<Date | null>(null);
     const zones = $derived([...new Set([...availableTimeZones(), $timeZone])].sort());
     onMount(() => { exampleDate = new Date(); });
@@ -23,7 +22,7 @@
         {#if exampleDate}<p>Example: {$timeFormat.dateTime(exampleDate)}</p>{/if}
         {#if $timeZonePersistenceError}<p role="status">Browser storage is unavailable. Your timezone applies for this visit but cannot be saved.</p>{/if}
     </section>
-    <PlutoniumMaintenance />
+    <p id="plutonium">Server updates and restart schedules are now in <a href="/maintenance">Operations → Maintenance</a>.</p>
 </section>
 
 <style>