Add timezone preference across time displays

src/routes/betas/new/+page.svelte

@@ -1,4 +1,5 @@
 <script lang="ts">
+    import { timeFormat } from '$ui/stores/time-zone.js';
     import { onMount, tick } from 'svelte';
     import { beforeNavigate, goto } from '$app/navigation';
     import { defaultPlan, parseBetaPlan, betaPlanIssues, type BetaPlan } from '$lib/beta-plan.js';
@@ -178,7 +179,7 @@
     {#if $fleetError}<div class="ui-error" role="alert">{$fleetError}<Button size="sm" onclick={refreshFleet}>Retry servers</Button></div>{/if}
     {#if notice}<p role="status" class="notice">{notice}</p>{/if}
     {#if loading}<EmptyState title="Loading beta setup…"/>
-    {:else if availableDraft}<section class="ui-panel draft"><h2>Resume unfinished beta?</h2><p>Saved {new Date(availableDraft.savedAt).toLocaleString()} · {availableDraft.picks.filter(p=>p.scriptId!==null).length} files · {availableDraft.servers.length} selected servers. Versions and eligibility will be rechecked.</p><div class="actions"><Button variant="primary" onclick={resumeDraft}>Resume draft</Button><Button onclick={discardDraft}>{hasLinkedSetup ? 'Discard draft and use linked files' : 'Discard draft'}</Button></div></section>
+    {:else if availableDraft}<section class="ui-panel draft"><h2>Resume unfinished beta?</h2><p>Saved {$timeFormat.dateTime(availableDraft.savedAt)} · {availableDraft.picks.filter(p=>p.scriptId!==null).length} files · {availableDraft.servers.length} selected servers. Versions and eligibility will be rechecked.</p><div class="actions"><Button variant="primary" onclick={resumeDraft}>Resume draft</Button><Button onclick={discardDraft}>{hasLinkedSetup ? 'Discard draft and use linked files' : 'Discard draft'}</Button></div></section>
     {:else if !eligibleFiles.length && !flash}<EmptyState title="No files ready to test" description="Upload a file version or finish its active beta, then return here."/><Button href="/scripts">Open Library</Button>
     {:else if scripts.length}
     <ol class="steps" aria-label="Beta setup progress">{#each steps as label,index}<li aria-current={step===index?'step':undefined} class:current={step===index}><span>{index+1}</span>{label}</li>{/each}</ol>