Bump version to 1.0.2+4, implement native state restoration, and clean up UI

lib/logic/session_timer.dart

@@ -27,7 +27,19 @@ class SessionTimer extends ChangeNotifier {
   int _lastUsedBytes = 0;
   double _currentSpeedKbps = 0.0; // Total speed (RX+TX)
 
-  SessionTimer({required this.vpnConnection});
+  SessionTimer({required this.vpnConnection}) {
+    vpnConnection.addListener(_onVpnConnectionChanged);
+  }
+
+  /// Fires whenever VpnConnection state changes.
+  /// Only acts during startup restoration — normal connects go through ConnectButton.
+  void _onVpnConnectionChanged() {
+    if (vpnConnection.status == VpnStatus.connected &&
+        !isRunning &&
+        vpnConnection.isStartupRestoration) {
+      start('resume');
+    }
+  }
 
   int get remaining => _remainingSeconds;
   bool get isRunning => _timer != null && _timer!.isActive;
@@ -181,6 +193,7 @@ class SessionTimer extends ChangeNotifier {
 
   @override
   void dispose() {
+    vpnConnection.removeListener(_onVpnConnectionChanged);
     _timer?.cancel();
     VpnNotificationManager.cancel();
     super.dispose();

lib/logic/vpn_connection.dart

@@ -43,6 +43,11 @@ class VpnConnection extends ChangeNotifier {
   VpnStatus _status = VpnStatus.disconnected;
   VpnStatus get status => _status;
 
+  // True only during the brief window after startup where we detected an
+  // already-running tunnel — lets SessionTimer know to auto-resume.
+  bool _isStartupRestoration = false;
+  bool get isStartupRestoration => _isStartupRestoration;
+
   // Short message shown to the user under the connect button
   String _statusMessage = 'Tap to connect';
   String get statusMessage => _statusMessage;
@@ -84,6 +89,20 @@ class VpnConnection extends ChangeNotifier {
     try {
       _stageSub = _wireguard.vpnStageSnapshot.listen(_mapStage);
     } catch (_) {}
+
+    // Check if the VPN was already running before the app started.
+    // This handles the case where the user swiped the app away and reopened it.
+    try {
+      final currentStage = await _wireguard.stage();
+      if (currentStage == VpnStage.connected) {
+        _isStartupRestoration = true;
+        _mapStage(currentStage);
+        // Clear the flag after a few seconds — only needed during app startup
+        Future.delayed(const Duration(seconds: 5), () {
+          _isStartupRestoration = false;
+        });
+      }
+    } catch (_) {}
   }
 
   // ── Native State Mapping ──────────────────────────────────────────────────