feat: systemd management (#532)

lib/data/provider/app.dart

@@ -1,30 +1,7 @@
-import 'package:device_info_plus/device_info_plus.dart';
-import 'package:fl_lib/fl_lib.dart';
 import 'package:flutter/material.dart';
 
-class AppProvider extends ChangeNotifier {
-  BuildContext? ctx;
+final class AppProvider {
+  const AppProvider._();
 
-  bool isWearOS = false;
-
-  Future<void> init() async {
-    await _initIsWearOS();
-  }
-
-  Future<void> _initIsWearOS() async {
-    if (!isAndroid) {
-      isWearOS = false;
-      return;
-    }
-
-    final deviceInfo = DeviceInfoPlugin();
-    final androidInfo = await deviceInfo.androidInfo;
-
-    const feat = 'android.hardware.type.watch';
-    final hasFeat = androidInfo.systemFeatures.contains(feat);
-    if (hasFeat) {
-      isWearOS = true;
-      return;
-    }
-  }
+  static BuildContext? ctx;
 }