Add timezone preference across time displays

src/lib/ui/components/ArtifactDetail.svelte

@@ -1,4 +1,5 @@
 <script lang="ts">
+    import { timeFormat } from '$ui/stores/time-zone.js';
     import { onMount } from 'svelte';
     import { pollVisible } from '$ui/poll.js';
     import { confirmAction } from '$ui/confirm.js';
@@ -350,7 +351,7 @@
             </div></details>
         </Card>
 
-        {#if installedVersions.length}<details class="installed"><summary>Recorded installed files · {installedVersions.length} servers</summary><p>Last recorded file writes, not a verification of the currently running process.</p><ul>{#each installedVersions as installed}<li><a href={'/servers/' + encodeURIComponent(installed.server)}>{installed.server}</a> · v{installed.version} · {new Date(installed.recordedAt).toLocaleString()}</li>{/each}</ul></details>{:else if family !== 'config'}<p class="dim">No installed file versions recorded. Eligibility does not mean a file is installed.</p>{/if}
+        {#if installedVersions.length}<details class="installed"><summary>Recorded installed files · {installedVersions.length} servers</summary><p>Last recorded file writes, not a verification of the currently running process.</p><ul>{#each installedVersions as installed}<li><a href={'/servers/' + encodeURIComponent(installed.server)}>{installed.server}</a> · v{installed.version} · {$timeFormat.dateTime(installed.recordedAt)}</li>{/each}</ul></details>{:else if family !== 'config'}<p class="dim">No installed file versions recorded. Eligibility does not mean a file is installed.</p>{/if}
 
         {#if a.kind === 'config' || a.kind === 'baseline'}
             <ConfigEditor {id} kind={a.kind} {versions} currentVersionId={a.current_version_id}
@@ -372,7 +373,7 @@
                             <span class="v-notes">{v.notes ?? ''}
                                 {#if v.source}<a href={v.source.release_url} target="_blank" rel="noreferrer">GitHub · {v.source.asset_name} ↗</a>{/if}
                             </span>
-                            <time class="v-when" datetime={v.uploaded_at}>{new Date(v.uploaded_at).toLocaleString()}</time>
+                            <time class="v-when" datetime={v.uploaded_at}>{$timeFormat.dateTime(v.uploaded_at)}</time>
                             {#if a.current_version_id === v.id}
                                 <Badge variant="online" size="sm">Promoted</Badge>
                             {:else}