v3.2.0 — DPI hardening, notification consolidation, disconnect refactor

User-Agent spoofed to Chrome on Android (was Dart/3.x). Domain renamed to userevolt.app. Branding to Revolt VPN. Removed duplicate notification, patched flutter_vless for custom icon + dark background. Merged 5 disconnect paths into single idempotent gate, fixed stopVless timeout silently lying about state. Removed kDebugMode guard from AdMob bypass.

lib/logic/server_list.dart

@@ -0,0 +1,69 @@
+import 'package:flutter/foundation.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+// ── lib/logic/server_list.dart ──────────────────────────────────────────────
+// Server data model and ChangeNotifier — shared by StatusBar (shows current
+// server name/flag) and SelectionScreen (lets user pick a server).
+//
+// Each server is defined by its tunnel IP/port. Reality keys (public key,
+// shortId, fingerprint) come from AppConfig — all servers share the same
+// Reality keypair and bootstrap UUID (same operator, different locations).
+//
+// When multi-server ships:
+//   - _all becomes a fetched list (from /api/servers or bundled config)
+//   - SelectionScreen shows multiple rows
+//   - select() triggers a disconnect/reconnect cycle if the tunnel is active
+
+class ServerInfo {
+  final String id;
+  final String name;
+  final String flagAsset;
+  final String ip;
+  final int port;
+
+  const ServerInfo({
+    required this.id,
+    required this.name,
+    required this.flagAsset,
+    required this.ip,
+    required this.port,
+  });
+}
+
+class ServerList extends ChangeNotifier {
+  static const _all = [
+    ServerInfo(
+      id: 'finland',
+      name: 'Helsinki, Finland',
+      flagAsset: 'assets/finland_flag_256.png',
+      ip: '204.168.246.88',
+      port: 443,
+    ),
+  ];
+
+  int _selectedIndex = 0;
+
+  List<ServerInfo> get all => _all;
+  int get selectedIndex => _selectedIndex;
+  ServerInfo get selected => _all[_selectedIndex];
+
+  // Loads persisted selection from SharedPreferences.
+  // Fire-and-forget — UI starts with default, updates when prefs load.
+  Future<void> init() async {
+    final prefs = await SharedPreferences.getInstance();
+    final saved = prefs.getInt('selected_server_index') ?? 0;
+    if (saved >= 0 && saved < _all.length && saved != _selectedIndex) {
+      _selectedIndex = saved;
+      notifyListeners();
+    }
+  }
+
+  // Switches to a different server. Persists the choice.
+  Future<void> select(int index) async {
+    if (index == _selectedIndex || index < 0 || index >= _all.length) return;
+    _selectedIndex = index;
+    notifyListeners();
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setInt('selected_server_index', index);
+  }
+}