Refactor desktop window management and tray

lib/features/auto_start/notifier/auto_start_notifier.dart

@@ -0,0 +1,37 @@
+import 'dart:io';
+
+import 'package:hiddify/core/app_info/app_info_provider.dart';
+import 'package:hiddify/utils/utils.dart';
+import 'package:launch_at_startup/launch_at_startup.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'auto_start_notifier.g.dart';
+
+@Riverpod(keepAlive: true)
+class AutoStartNotifier extends _$AutoStartNotifier with InfraLogger {
+  @override
+  Future<bool> build() async {
+    if (!PlatformUtils.isDesktop) return false;
+
+    final appInfo = ref.watch(appInfoProvider).requireValue;
+    launchAtStartup.setup(
+      appName: appInfo.name,
+      appPath: Platform.resolvedExecutable,
+    );
+    final isEnabled = await launchAtStartup.isEnabled();
+    loggy.info("auto start is [${isEnabled ? "Enabled" : "Disabled"}]");
+    return isEnabled;
+  }
+
+  Future<void> enable() async {
+    loggy.debug("enabling auto start");
+    await launchAtStartup.enable();
+    state = const AsyncValue.data(true);
+  }
+
+  Future<void> disable() async {
+    loggy.debug("disabling auto start");
+    await launchAtStartup.disable();
+    state = const AsyncValue.data(false);
+  }
+}