feat: Add blePermissionList method to DeviceDiscoveryViewModel for platform-specific BLE permissions

Author: oldrev

client/lib/features/devices/view_models/device_discovery_view_model.dart

@@ -202,17 +202,31 @@ class DeviceDiscoveryViewModel extends AbstractScreenViewModel {
   /// public so that tests can supply a fake implementation.
   Future<bool> Function()? requestBlePermissions;
 
+  @visibleForTesting
+  List<Permission> blePermissionList() {
+    // iOS only has a single Bluetooth permission; Android requires location +
+    // separate scan/connect permissions.  The list is kept in a method so tests
+    // can verify the behaviour without mocking the plugin itself.
+    if (_platformService.isIOS) {
+      return [
+        Permission.bluetooth,
+        // location may also be required when scanning on iOS
+        Permission.locationWhenInUse,
+      ];
+    } else {
+      return [Permission.locationWhenInUse, Permission.bluetoothScan, Permission.bluetoothConnect];
+    }
+  }
+
   Future<bool> _ensureBlePermissions() async {
     // allow injection for tests
     if (requestBlePermissions != null) {
       return await requestBlePermissions!();
     }
 
-    final statuses = await [
-      Permission.locationWhenInUse,
-      Permission.bluetoothScan,
-      Permission.bluetoothConnect,
-    ].request();
+    final permissions = blePermissionList();
+    final statuses = await permissions.request();
+    _logger.d('BLE permission statuses: $statuses');
 
     // if any permission is not granted, treat as failure
     for (var status in statuses.values) {

client/test/view_models/device_discovery_view_model_test.dart

@@ -8,6 +8,7 @@ import 'package:flutter/services.dart';
 import 'package:event_bus/event_bus.dart';
 import 'package:logger/logger.dart';
 import 'package:sembast/sembast.dart';
+import 'package:permission_handler/permission_handler.dart';
 
 import 'package:borneo_app/features/devices/view_models/device_discovery_view_model.dart';
 import 'package:borneo_app/core/services/devices/device_manager.dart';
@@ -227,6 +228,32 @@ void main() {
       );
     }
 
+    test('blePermissionList returns Android permissions on Android', () {
+      vm = makeVm(mobile: true);
+      final perms = vm.blePermissionList();
+      expect(perms, containsAll([Permission.locationWhenInUse, Permission.bluetoothScan, Permission.bluetoothConnect]));
+      expect(perms.length, 3);
+    });
+
+    test('blePermissionList returns iOS permissions on iOS', () {
+      // manual iOS platform service, bypassing makeVm helper
+      bleProv = FakeBleProvisioner();
+      vm = DeviceDiscoveryViewModel(
+        Logger(),
+        FakeDeviceManager(),
+        bleProv,
+        FakeDeviceModuleRegistry(),
+        FakePlatformService(isIOS: true),
+        globalEventBus: EventBus(),
+        gt: FakeGettext(),
+        logger: Logger(),
+        requestBlePermissions: () async => true,
+      );
+      final perms = vm.blePermissionList();
+      expect(perms, containsAll([Permission.bluetooth, Permission.locationWhenInUse]));
+      expect(perms.length, 2);
+    });
+
     test('startDiscovery does not call BLE scan when permissions denied', () async {
       vm = makeVm(mobile: true, permissions: () async => false);
       expect(bleProv.scanCalled, isFalse);