iOS: Call [super init] in LocationHelper's initializer

Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01JZk5y4Fzw811WJoNWZb8Sc

ios/LocationHelper.mm

@@ -7,8 +7,11 @@
 
 -(id) init {
     NSLog(@"LocationHelper::init");
-    locationManager = [[CLLocationManager alloc] init];
-    [locationManager setDelegate:self];
+    self = [super init];
+    if (self) {
+        locationManager = [[CLLocationManager alloc] init];
+        [locationManager setDelegate:self];
+    }
     return self;
 }