Preserve deleted server history

Retain historical server identities, results, and evidence after deletion. Mark archived entries as Deleted and prevent old work from targeting servers that reuse the same name.

Fixes #16.

src/routes/leaderboard/players/[game]/[guid]/+page.svelte

@@ -5,6 +5,7 @@
     import SectionHeader from '$ui/components/primitives/SectionHeader.svelte';
     import Button from '$ui/components/primitives/Button.svelte';
     import CopyValue from '$ui/components/CopyValue.svelte';
+    import Badge from '$ui/components/primitives/Badge.svelte';
 
     let { data }: { data: { profile: PlayerProfile } } = $props();
     const profile = $derived(data.profile);
@@ -76,7 +77,7 @@
             <table>
                 <thead><tr><th scope="col">Map / server</th><th scope="col">Match started</th><th scope="col">Match status</th>{#each historyColumns as key}<th scope="col">{leaderboardMetrics.find(metric => metric.key === key)!.label}</th>{/each}</tr></thead>
                 <tbody>{#each profile.matches as match (match.id)}
-                    <tr><th scope="row">{match.mapName}<small>{match.server}</small></th><td>{date(match.startedAt)}</td>
+                    <tr><th scope="row">{match.mapName}<small>{match.server} {#if match.server_deleted_at}<Badge>Deleted</Badge>{/if}</small></th><td>{date(match.startedAt)}</td>
                         <td class="status">{match.status}<small>{match.completed ? 'Completion credited' : 'No completion credit'}</small></td>
                         {#each historyColumns as key}<td class:best={key === 'highestRound'}>{number.format(match[key])}</td>{/each}
                     </tr>