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/components/notification.dart

@@ -1,10 +1,18 @@
 import 'dart:io';
+import 'dart:ui' as ui;
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 
 class VpnNotificationManager {
   static final FlutterLocalNotificationsPlugin _plugin =
       FlutterLocalNotificationsPlugin();
   static bool _initialized = false;
+  static String? _lastTimeLeft;
+  static String? _lastSpeedKbps;
+
+  // Android channels are immutable — bump this if settings change.
+  static const _channelId = 'revolt_vpn_v4';
+  static const _channelName = 'Revolt VPN';
+  static const _notifId = 888;
 
   static Future<void> init() async {
     if (_initialized) return;
@@ -15,7 +23,6 @@ class VpnNotificationManager {
 
     await _plugin.initialize(initSettings);
 
-    // Request POST_NOTIFICATIONS permission on Android 13+
     if (Platform.isAndroid) {
       final androidPlugin = _plugin
           .resolvePlatformSpecificImplementation<
@@ -26,77 +33,61 @@ class VpnNotificationManager {
     _initialized = true;
   }
 
-  static String? _lastTimeLeft;
-  static String? _lastSpeedKbps;
-
   static Future<void> showOrUpdateStatus({
     required String timeLeft,
     required String speedKbps,
   }) async {
-    // Skip update if nothing changed — prevents notification flicker
-    // on Android skins that animate every notification update.
     if (timeLeft == _lastTimeLeft && speedKbps == _lastSpeedKbps) return;
-    _lastTimeLeft  = timeLeft;
+    _lastTimeLeft = timeLeft;
     _lastSpeedKbps = speedKbps;
 
     if (!_initialized) await init();
 
-    // NOTE: The channel ID includes 'v2' to force Android to create a fresh
-    // notification channel. Android channels are immutable once created — if
-    // the old channel was created without 'ongoing: true', users would be
-    // stuck with a swipeable notification forever.
-    const androidDetails = AndroidNotificationDetails(
-      'revolt_vpn_status_v2',
-      'VPN Status',
-      channelDescription: 'Shown while VPN is active — non-dismissable',
-      importance: Importance.low,
-      priority: Priority.low,
-      // Non-dismissable while VPN is running
-      ongoing: true,
-      autoCancel: false,
-      // Silent updates — no sound or vibration each time stats refresh
-      playSound: false,
-      enableVibration: false,
-      onlyAlertOnce: true,
-      // Hide the auto-generated timestamp
-      showWhen: false,
-      // Show on lock screen
-      visibility: NotificationVisibility.public,
-      // Extra insurance against swipe-to-dismiss on aggressive Android skins
-      usesChronometer: false,
-      category: AndroidNotificationCategory.service,
+    final bodyText = 'Time: $timeLeft  •  $speedKbps';
+
+    final bigPictureStyle = BigPictureStyleInformation(
+      const DrawableResourceAndroidBitmap('notification_banner'),
+      largeIcon: const DrawableResourceAndroidBitmap('notification_icon'),
+      contentTitle: 'Revolt VPN',
+      summaryText: bodyText,
+      htmlFormatContentTitle: false,
+      htmlFormatSummaryText: false,
     );
 
-    const notificationDetails = NotificationDetails(android: androidDetails);
+    final androidDetails = AndroidNotificationDetails(
+      _channelId,
+      _channelName,
+      channelDescription: 'Session timer and speed',
+      importance: Importance.low,
+      priority: Priority.low,
+      ongoing: true,
+      autoCancel: false,
+      playSound: false,
+      enableVibration: false,
+      showWhen: false,
+      visibility: NotificationVisibility.public,
+      usesChronometer: false,
+      category: AndroidNotificationCategory.service,
+      colorized: true,
+      color: const ui.Color(0xFF0D1117),
+      styleInformation: bigPictureStyle,
+    );
+
+    final details = NotificationDetails(android: androidDetails);
 
     try {
-      await _plugin.show(
-        888, // Fixed ID — always updates the same notification
-        'REVOLT VPN Active',
-        'Time: $timeLeft  •  $speedKbps',
-        notificationDetails,
-      );
+      await _plugin.show(_notifId, _channelName, bodyText, details);
     } catch (e) {
-      // If showing fails (e.g. permission revoked), try to recover by
-      // re-initializing and retrying once.
       _initialized = false;
       try {
         await init();
-        await _plugin.show(
-          888,
-          'REVOLT VPN Active',
-          'Time: $timeLeft  •  $speedKbps',
-          notificationDetails,
-        );
-      } catch (_) {
-        // Give up — the VPN still works, just without the notification.
-      }
+        await _plugin.show(_notifId, _channelName, bodyText, details);
+      } catch (_) {}
     }
   }
 
   static Future<void> cancel() async {
     if (!_initialized) return;
-    await _plugin.cancel(888);
+    await _plugin.cancel(_notifId);
   }
 }
-