Preserve originating views through detail navigation

src/routes/maintenance/+page.svelte

@@ -1,4 +1,5 @@
 <script lang="ts">
+    import { contextHref } from '$lib/navigation-context.js';
     import { onMount } from 'svelte';
     import { page } from '$app/stores';
     import { goto } from '$app/navigation';
@@ -190,7 +191,7 @@
                         <div class="row-heading"><h3>{item.title} · <HistoricalServerIdentity name={item.server} deletedAt={item.server_deleted_at} /></h3><Badge variant={item.state === 'attention' ? 'danger' : item.state === 'active' ? 'info' : 'neutral'}>{item.label}</Badge></div>
                         {#if item.detail}<p>{item.detail}</p>{/if}
                         <p class="muted">{$timeFormat.dateTime(item.at)}{item.job?.target_revision ? ` · Expected r${item.job.target_revision} or newer` : ''}</p>
-                        <div class="links">{#if item.href}<a href={item.href}>{item.job ? 'View restart operation' : 'View evidence and recovery'}</a>{/if}
+                        <div class="links">{#if item.href}<a href={contextHref(item.href, $page.url)}>{item.job ? 'View restart operation' : 'View evidence and recovery'}</a>{/if}
                             {#if item.job?.state === 'queued' && !item.server_deleted_at}<Button size="sm" disabled={busy} onclick={() => act({ action: 'cancel', id: item.job!.id })}>Cancel restart</Button>{/if}
                             {#if item.job?.state === 'failed' && !item.server_deleted_at && item.job.operation_state === 'done'}<Button size="sm" disabled={busy || data.policies.paused} onclick={() => act({ action: 'retry', id: item.job!.id })}>Retry after inspection</Button>{/if}
                         </div>