Add unique IP count by user in the user traffic table

- Introduced a derived state to calculate the count of unique IPs associated with each user, enhancing the data presented in the user traffic table.
- Replaced the previous unordered list with a structured table format for better readability and organization of user traffic and IP data.
- Updated the user interface to display the number of unique IPs alongside user traffic metrics, improving the overall user experience and data clarity.

web/src/routes/+page.svelte

@@ -160,6 +160,20 @@
 		return set.size;
 	});
 
+	let uniqueIpCountByUser = $derived.by((): Record<string, number> => {
+		const byUser: Record<string, number> = {};
+		for (const row of uniqueIps ?? []) {
+			const username = row.username ?? '';
+			if (!username) continue;
+			const set = new Set<string>();
+			for (const ip of row.ips ?? []) {
+				if (ip.ip) set.add(ip.ip);
+			}
+			byUser[username] = set.size;
+		}
+		return byUser;
+	});
+
 	let readOnlyNodes = $derived.by(() => {
 		let n = 0;
 		for (const s of fleet?.servers ?? []) {
@@ -459,14 +473,30 @@
 			<Card.Title>Топ пользователей по трафику</Card.Title>
 		</Card.Header>
 		<Card.Content>
-			<ul class="space-y-1 text-sm">
-				{#each summary.top_users.slice(0, 10) as t (t.username)}
-					<li class="flex justify-between gap-4">
-						<a href="/users/{encodeURIComponent(t.username)}" class="text-primary hover:underline">{t.username}</a>
-						<span class="text-muted-foreground tabular-nums">{formatMiB(t.total_megabytes)}</span>
-					</li>
-				{/each}
-			</ul>
+			<Table.Root>
+				<Table.Header>
+					<Table.Row>
+						<Table.Head>Пользователь</Table.Head>
+						<Table.Head class="text-right">Трафик</Table.Head>
+						<Table.Head class="text-right">Замеченные IP</Table.Head>
+					</Table.Row>
+				</Table.Header>
+				<Table.Body>
+					{#each summary.top_users.slice(0, 10) as t (t.username)}
+						<Table.Row>
+							<Table.Cell class="font-medium">
+								<a href="/users/{encodeURIComponent(t.username)}" class="text-primary hover:underline">
+									{t.username}
+								</a>
+							</Table.Cell>
+							<Table.Cell class="text-right text-muted-foreground tabular-nums">{formatMiB(t.total_megabytes)}</Table.Cell>
+							<Table.Cell class="text-right text-muted-foreground tabular-nums">
+								{uniqueIpCountByUser[t.username] ?? 0}
+							</Table.Cell>
+						</Table.Row>
+					{/each}
+				</Table.Body>
+			</Table.Root>
 		</Card.Content>
 	</Card.Root>
 {/if}