refactor(app): debloat 3.3.1 and fix startup restoration

Maintainer changes on top of PR #2 (Naveax). Reduces the release to two
deliberate connection modes and resolves the issues found in review:

- Lock-screen privacy: move VISIBILITY_PRIVATE and a generic publicVersion
  into MainActivity.updateVpnNotification. The PR's fix lived in an
  unreferenced class and never reached the live notification.
- Haptics: restore the default to off, and reduce HapticSettings to a
  single success() on connect/disconnect via the native channel.
- SOCKS5: make it a real proxyOnly local-proxy mode rather than a TUN
  connection under a different label. TUN stays the default.
- Health probe: restore the idle-only guard so /health is no longer polled
  every 30s while connected.
- Recovery: add a _connectionEpoch counter so connect() aborts an
  in-flight Extreme recovery.
- Startup restoration: rebuild the recovery snapshot from the still-active
  session after an app-process restart (TUN), and surface an honest
  orphaned state with a Reconnect action in proxy mode.

Drops per-app routing entirely. It only ever functioned in TUN --
addDisallowedApplication lives inside the VPN-interface setup that
proxyOnly skips -- and its allowlist half had no Dart caller.

Also removes flutter_local_notifications, the global tap-haptic surface,
and unused runtime telemetry.

Co-Authored-By: Claude Opus 5 <[email protected]>

lib/screens/settings/settings_screen.dart

@@ -1,34 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:revoltvpn/logic/app_colors.dart';
-import 'package:revoltvpn/logic/connection_settings.dart';
-import 'package:revoltvpn/screens/settings/in_settings/app_routing.dart';
 import 'package:revoltvpn/screens/settings/in_settings/connection_mode.dart';
 import 'package:revoltvpn/screens/settings/in_settings/haptic.dart';
 import 'package:revoltvpn/screens/settings/in_settings/lightning.dart';
 import 'package:revoltvpn/screens/settings/in_settings/rain.dart';
 import 'package:revoltvpn/screens/settings/in_settings/resilience.dart';
 
-class SettingsScreen extends StatefulWidget {
+class SettingsScreen extends StatelessWidget {
   const SettingsScreen({super.key});
 
-  @override
-  State<SettingsScreen> createState() => _SettingsScreenState();
-}
-
-class _SettingsScreenState extends State<SettingsScreen> {
-  ConnectionMode _mode = ConnectionSettings.mode;
-
-  @override
-  void initState() {
-    super.initState();
-    _loadMode();
-  }
-
-  Future<void> _loadMode() async {
-    await ConnectionSettings.initialize();
-    if (mounted) setState(() => _mode = ConnectionSettings.mode);
-  }
-
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -50,15 +30,12 @@ class _SettingsScreenState extends State<SettingsScreen> {
       ),
       body: ListView(
         padding: const EdgeInsets.symmetric(vertical: 8),
-        children: [
-          ConnectionModeTile(
-            onChanged: (mode) => setState(() => _mode = mode),
-          ),
-          const ResilienceModeTile(),
-          AppRoutingTile(connectionMode: _mode),
-          const HapticFeedbackTile(),
-          const RainToggleTile(),
-          const LightningToggleTile(),
+        children: const [
+          ConnectionModeTile(),
+          ResilienceModeTile(),
+          HapticFeedbackTile(),
+          RainToggleTile(),
+          LightningToggleTile(),
         ],
       ),
     );