Add scheduled profile update

lib/features/common/app_update_notifier.dart

@@ -66,11 +66,11 @@ class AppUpdateNotifier extends _$AppUpdateNotifier with AppLogger {
     ).run();
   }
 
-  void _schedule() {
+  Future<void> _schedule() async {
     loggy.debug("scheduling app update checker");
-    ref.watch(cronServiceProvider).schedule(
+    return ref.read(cronServiceProvider).schedule(
           key: 'app_update',
-          duration: const Duration(hours: 4),
+          duration: const Duration(hours: 8),
           callback: () async {
             await Future.delayed(const Duration(seconds: 5));
             final updateState = await check();

lib/features/common/common_controllers.dart

@@ -1,8 +1,11 @@
+import 'package:hiddify/core/prefs/general_prefs.dart';
 import 'package:hiddify/features/common/app_update_notifier.dart';
 import 'package:hiddify/features/common/connectivity/connectivity_controller.dart';
 import 'package:hiddify/features/common/window/window_controller.dart';
 import 'package:hiddify/features/logs/notifier/notifier.dart';
+import 'package:hiddify/features/profiles/notifier/notifier.dart';
 import 'package:hiddify/features/system_tray/controller/system_tray_controller.dart';
+import 'package:hiddify/services/service_providers.dart';
 import 'package:hiddify/utils/platform_utils.dart';
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 
@@ -12,6 +15,15 @@ part 'common_controllers.g.dart';
 // https://github.com/rrousselGit/riverpod/discussions/2730
 @Riverpod(keepAlive: true)
 void commonControllers(CommonControllersRef ref) {
+  ref.listen(
+    introCompletedProvider,
+    (_, completed) async {
+      if (completed) {
+        await ref.read(cronServiceProvider).startScheduler();
+      }
+    },
+    fireImmediately: true,
+  );
   ref.listen(
     logsNotifierProvider,
     (previous, next) {},
@@ -26,6 +38,11 @@ void commonControllers(CommonControllersRef ref) {
     (previous, next) {},
     fireImmediately: true,
   );
+  ref.listen(
+    profilesUpdateNotifierProvider,
+    (previous, next) {},
+    fireImmediately: true,
+  );
   if (PlatformUtils.isDesktop) {
     ref.listen(
       windowControllerProvider,