feat: show notification and battery optimization warning

mobile/lib/providers/app_life_cycle.provider.dart

@@ -11,7 +11,7 @@ import 'package:immich_mobile/providers/background_sync.provider.dart';
 import 'package:immich_mobile/providers/backup/drift_backup.provider.dart';
 import 'package:immich_mobile/providers/gallery_permission.provider.dart';
 import 'package:immich_mobile/providers/infrastructure/platform.provider.dart';
-import 'package:immich_mobile/providers/notification_permission.provider.dart';
+import 'package:immich_mobile/providers/permission.provider.dart';
 import 'package:immich_mobile/providers/server_info.provider.dart';
 import 'package:immich_mobile/providers/websocket.provider.dart';
 import 'package:immich_mobile/services/app_settings.service.dart';

mobile/lib/providers/infrastructure/platform.provider.dart

@@ -3,9 +3,10 @@ import 'package:immich_mobile/domain/services/background_worker.service.dart';
 import 'package:immich_mobile/platform/background_worker_api.g.dart';
 import 'package:immich_mobile/platform/background_worker_lock_api.g.dart';
 import 'package:immich_mobile/platform/connectivity_api.g.dart';
-import 'package:immich_mobile/platform/native_sync_api.g.dart';
 import 'package:immich_mobile/platform/local_image_api.g.dart';
+import 'package:immich_mobile/platform/native_sync_api.g.dart';
 import 'package:immich_mobile/platform/network_api.g.dart';
+import 'package:immich_mobile/platform/permission_api.g.dart';
 import 'package:immich_mobile/platform/remote_image_api.g.dart';
 
 final backgroundWorkerFgServiceProvider = Provider((_) => BackgroundWorkerFgService(BackgroundWorkerFgHostApi()));
@@ -18,6 +19,8 @@ final nativeSyncApiProvider = Provider<NativeSyncApi>((_) => NativeSyncApi());
 
 final connectivityApiProvider = Provider<ConnectivityApi>((_) => ConnectivityApi());
 
+final permissionApiProvider = Provider<PermissionApi>((_) => PermissionApi());
+
 final localImageApi = LocalImageApi();
 
 final remoteImageApi = RemoteImageApi();

mobile/lib/providers/permission.provider.dart

@@ -1,6 +1,9 @@
+import 'dart:async';
 import 'dart:io';
 
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/platform/permission_api.g.dart' as pm;
+import 'package:immich_mobile/providers/infrastructure/platform.provider.dart';
 import 'package:permission_handler/permission_handler.dart';
 
 class NotificationPermissionNotifier extends StateNotifier<PermissionStatus> {
@@ -39,3 +42,32 @@ class NotificationPermissionNotifier extends StateNotifier<PermissionStatus> {
 final notificationPermissionProvider = StateNotifierProvider<NotificationPermissionNotifier, PermissionStatus>(
   (ref) => NotificationPermissionNotifier(),
 );
+
+final batteryOptimizationProvider = AsyncNotifierProvider<BatteryOptimizationNotifier, PermissionStatus>(
+  BatteryOptimizationNotifier.new,
+);
+
+class BatteryOptimizationNotifier extends AsyncNotifier<PermissionStatus> {
+  Future<PermissionStatus> getBatteryOptimizationPermission() async {
+    final PermissionStatus status;
+    final isIgnoring = await ref.read(permissionApiProvider).isIgnoringBatteryOptimizations().then((p) => p.toStatus());
+    if (isIgnoring == PermissionStatus.granted) {
+      status = PermissionStatus.granted;
+    } else {
+      status = PermissionStatus.denied;
+    }
+    state = AsyncValue.data(status);
+    return status;
+  }
+
+  @override
+  FutureOr<PermissionStatus> build() => getBatteryOptimizationPermission();
+}
+
+extension on pm.PermissionStatus {
+  PermissionStatus toStatus() => switch (this) {
+    pm.PermissionStatus.granted => PermissionStatus.granted,
+    pm.PermissionStatus.denied => PermissionStatus.denied,
+    pm.PermissionStatus.permanentlyDenied => PermissionStatus.permanentlyDenied,
+  };
+}