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/lib/ui/components/MatchHistory.svelte

@@ -3,7 +3,7 @@
     import type { ServerMatch } from '$lib/match-history.js';
     import { pollVisible } from '$ui/poll.js';
     import { formatDuration } from '$ui/duration.js';
-    import { serverTitle } from '$ui/server-labels.js';
+    import HistoricalServerIdentity from './HistoricalServerIdentity.svelte';
     import Card from './primitives/Card.svelte';
     import Button from './primitives/Button.svelte';
     import EmptyState from './primitives/EmptyState.svelte';
@@ -60,7 +60,7 @@
                         <tr>
                             <td><time datetime={match.startedAt}>{$timeFormat.dateTime(match.startedAt)}</time></td>
                             <td>{#if match.endedAt}<time datetime={match.endedAt}>{$timeFormat.dateTime(match.endedAt)}</time>{:else}—{/if}</td>
-                            {#if server === undefined}<td><a href={`/servers/${encodeURIComponent(match.server)}?tab=matches`}>{serverTitle(match.server)}</a></td>{/if}
+                            {#if server === undefined}<td><HistoricalServerIdentity name={match.server} deletedAt={match.server_deleted_at} href={`/servers/${encodeURIComponent(match.server)}?tab=matches`} /></td>{/if}
                             <td>{match.map}</td>
                             <td>{match.status === 'active' ? 'In progress' : match.status === 'completed' ? 'Completed' : 'Interrupted'}</td>
                             <td>{match.startPlayers ?? '—'}</td><td>{match.uniquePlayers}</td><td>{match.endPlayers ?? '—'}</td>
@@ -84,5 +84,4 @@
     th, td { padding: var(--space-3); text-align: left; border-bottom: 1px solid var(--border-subtle); white-space: nowrap; }
     th { color: var(--text-secondary); font-size: var(--text-xs); }
     td { font-variant-numeric: tabular-nums; }
-    a { color: var(--accent-primary-hover); }
 </style>