Add peer management routes and server configuration services

lib/services/server_service.dart

@@ -0,0 +1,30 @@
+import 'dart:io';
+import 'package:waylume_server/config/supabase_config.dart';
+import 'package:waylume_server/core/utils.dart';
+
+class ServerService {
+  static Future<void> registerServer() async {
+    String ip = await getWanIp();
+
+    var existsCheck = await SUPABASE_CLIENT
+        .from("waylume_servers")
+        .select()
+        .eq("id", fromEnivronment('SERVER_ID'))
+        .eq("host_ip", ip);
+
+    if (existsCheck.isEmpty) {
+      await SUPABASE_CLIENT
+          .from("waylume_servers")
+          .insert({
+        "id": fromEnivronment('SERVER_ID')!,
+        "last_heartbeat": DateTime.now().toUtc().toIso8601String(),
+        "host_ip": ip,
+      });
+    }
+  }
+
+  static Future<void> isolatePeers() async {
+    await Process.run('iptables', ['-I', 'FORWARD', '-i', 'wg0', '-o', 'wg0', '-j', 'DROP']);
+    await Process.run('iptables', ['-I', 'FORWARD', '-i', 'wg0', '-o', 'wg0', '-m', 'state', '--state', 'ESTABLISHED,RELATED', '-j', 'ACCEPT']);
+  }
+}