Add sidebar navigation and global command search

src/lib/ui/components/ArtifactDetail.svelte

@@ -1,7 +1,6 @@
 <script lang="ts">
     import { page } from '$app/stores';
     import { contextHref } from '$lib/navigation-context.js';
-    import BackLink from '$ui/components/BackLink.svelte';
     import { timeFormat } from '$ui/stores/time-zone.js';
     import { onMount } from 'svelte';
     import { pollVisible } from '$ui/poll.js';
@@ -288,7 +287,6 @@
                 <Breadcrumbs items={[{ label: crumbLabel, href: basePath }, { label: a.name }]} />
             {/snippet}
         </SectionHeader>
-    <BackLink fallback={basePath} />
 
         {#if scopeComplete}<div class="scope-complete" role="status"><strong>Scope saved.</strong> {scopeComplete.composed ? `Intended configuration may change on ${scopeComplete.count} eligible servers.` : scopeComplete.detached ? `Inventory tracking detached on ${scopeComplete.detached} servers; live files remain.` : `${scopeComplete.count} servers are in the old or new scope.`} Maintenance detects resulting drift and rebuilds eligible servers when automation is enabled. <a href={scopeComplete.href}>View drift recovery →</a></div>{/if}
         {#if latestVersion}<Card padding="lg"><div class="release-summary"><div><h2>Latest {artifactVersionLabel(latestVersion)}</h2><StatusBadge state={latestVersion.id === a.current_version_id ? 'promoted' : latestVersion.state} /><p>{latestVersion.notes || 'No version notes provided.'}</p></div>{#if runningBetaId !== null}<Button variant="primary" href={contextHref(`/betas/${runningBetaId}`, $page.url)}>View active beta</Button>{:else if latestVersion.id !== a.current_version_id}<Button variant="primary" href={contextHref(betaSelectionHref([{ scriptId: id, versionId: latestVersion.id }]), $page.url)}>Test latest version</Button>{:else}<span class="dim">Latest version is promoted</span>{/if}</div></Card>{/if}