Refactor active IP-server data handling in user traffic table

- Updated the data structure to store multiple servers associated with each user, enhancing the representation of active connections.
- Improved the logic for generating active IP-server rows, utilizing a map for better performance and organization.
- Modified the UI to display a list of servers for each user, improving clarity and usability in the user traffic table.

web/src/routes/+page.svelte

@@ -213,17 +213,19 @@
 		username: string;
 		ip: string;
 		country_code: string | null | undefined;
-		server: string;
+		servers: string[];
 		activeLabel: string;
 	};
 
 	let activeIpServerRows = $derived.by((): ActiveIpServerRow[] => {
-		const out: ActiveIpServerRow[] = [];
-		const seen = new Set<string>();
+		const map = new Map<
+			string,
+			{ row: Omit<ActiveIpServerRow, 'servers'>; serversSet: Set<string> }
+		>();
 		const maxUniqueIpRows = 80;
 		const maxOutRows = 2000;
 
-		for (const ur of uniqueIps?.slice(0, maxUniqueIpRows) ?? []) {
+		outer: for (const ur of uniqueIps?.slice(0, maxUniqueIpRows) ?? []) {
 			const username = ur.username ?? '';
 			if (!username) continue;
 
@@ -231,32 +233,41 @@
 				const ip = ipa.ip ?? '';
 				if (!ip) continue;
 
-				const servers = ipa.active_on_servers ?? [];
+				const servers = (ipa.active_on_servers ?? []).filter(Boolean);
 				if (servers.length === 0) continue;
 
+				const key = `${username}|${ip}`;
+				let item = map.get(key);
+				if (!item) {
+					if (map.size >= maxOutRows) break outer;
+					item = {
+						row: {
+							username,
+							ip,
+							country_code: ipa.country_code,
+							activeLabel: chipLabel(ipa)
+						},
+						serversSet: new Set<string>()
+					};
+					map.set(key, item);
+				}
+
 				for (const server of servers) {
 					if (!server) continue;
-					const key = `${username}|${ip}|${server}`;
-					if (seen.has(key)) continue;
-					seen.add(key);
-
-					out.push({
-						username,
-						ip,
-						country_code: ipa.country_code,
-						server,
-						activeLabel: chipLabel(ipa)
-					});
-
-					if (out.length >= maxOutRows) return out;
+					item.serversSet.add(server);
 				}
 			}
 		}
 
-		out.sort(
-			(a, b) =>
-				a.ip.localeCompare(b.ip) || a.server.localeCompare(b.server) || a.username.localeCompare(b.username)
-		);
+		const out: ActiveIpServerRow[] = [];
+		for (const { row, serversSet } of map.values()) {
+			out.push({
+				...row,
+				servers: [...serversSet].sort((a, b) => a.localeCompare(b))
+			});
+		}
+
+		out.sort((a, b) => a.ip.localeCompare(b.ip) || a.username.localeCompare(b.username));
 		return out;
 	});
 </script>
@@ -443,7 +454,7 @@
 					<Table.Row>
 						<Table.Head>IP со страной</Table.Head>
 						<Table.Head>Клиент</Table.Head>
-						<Table.Head>Сервер</Table.Head>
+						<Table.Head>Серверы</Table.Head>
 					</Table.Row>
 				</Table.Header>
 				<Table.Body>
@@ -454,7 +465,7 @@
 							</Table.Cell>
 						</Table.Row>
 					{:else}
-						{#each activeIpServerRows as r (r.username + '|' + r.ip + '|' + r.server)}
+						{#each activeIpServerRows as r (r.username + '|' + r.ip)}
 							<Table.Row>
 								<Table.Cell class="font-mono text-sm">
 									{r.activeLabel}
@@ -468,12 +479,17 @@
 									</a>
 								</Table.Cell>
 								<Table.Cell>
-									<a
-										href="/servers/{encodeURIComponent(r.server)}"
-										class="text-primary hover:underline"
-									>
-										{r.server}
-									</a>
+									{#each r.servers as srv, idx (srv)}
+										<a
+											href="/servers/{encodeURIComponent(srv)}"
+											class="text-primary hover:underline"
+										>
+											{srv}
+										</a>
+										{#if idx < r.servers.length - 1}
+											<span class="text-muted-foreground">, </span>
+										{/if}
+									{/each}
 								</Table.Cell>
 							</Table.Row>
 						{/each}