fix(ios): clean up Voltra event monitoring on reload

packages/ios-client/ios/app/NativeVoltra.h

@@ -1,5 +1,6 @@
 #import <VoltraSpec/VoltraSpec.h>
+#import <React/RCTInvalidating.h>
 
-@interface NativeVoltra : NativeVoltraSpecBase <NativeVoltraSpec>
+@interface NativeVoltra : NativeVoltraSpecBase <NativeVoltraSpec, RCTInvalidating>
 
 @end

packages/ios-client/ios/app/NativeVoltra.mm

@@ -30,6 +30,7 @@ + (void)load
 
 @interface NativeVoltra () {
   VoltraModule *_module;
+  BOOL _invalidated;
 }
 @end
 
@@ -51,15 +52,25 @@ - (void)setEventEmitterCallback:(EventEmitterCallbackWrapper *_Nonnull)eventEmit
 {
   [super setEventEmitterCallback:eventEmitterCallbackWrapper];
 
+  if (_invalidated) {
+    return;
+  }
+
+  __weak NativeVoltra *weakSelf = self;
   [self.module startMonitoringWithEventHandler:^(NSString *eventName, NSDictionary *eventData) {
+    __strong NativeVoltra *strongSelf = weakSelf;
+    if (strongSelf == nil || strongSelf->_invalidated) {
+      return;
+    }
+
     if ([eventName isEqualToString:@"interaction"]) {
-      [self emitOnInteraction:eventData];
+      [strongSelf emitOnInteraction:eventData];
     } else if ([eventName isEqualToString:@"stateChange"]) {
-      [self emitOnStateChanged:eventData];
+      [strongSelf emitOnStateChanged:eventData];
     } else if ([eventName isEqualToString:@"activityTokenReceived"]) {
-      [self emitOnActivityTokenReceived:eventData];
+      [strongSelf emitOnActivityTokenReceived:eventData];
     } else if ([eventName isEqualToString:@"activityPushToStartTokenReceived"]) {
-      [self emitOnActivityPushToStartTokenReceived:eventData];
+      [strongSelf emitOnActivityPushToStartTokenReceived:eventData];
     }
   }];
 }
@@ -324,10 +335,16 @@ - (void)clearWidgetServerCredentials:(RCTPromiseResolveBlock)resolve reject:(RCT
   resolve(nil);
 }
 
-- (void)dealloc
+- (void)invalidate
 {
+  if (_invalidated) {
+    return;
+  }
+
+  _invalidated = YES;
   [[NSNotificationCenter defaultCenter] removeObserver:self];
-  [self.module stopMonitoring];
+  [_module stopMonitoring];
+  _module = nil;
 }
 
 @end

packages/ios-client/ios/app/VoltraLiveActivityService.swift

@@ -262,6 +262,8 @@ public class VoltraLiveActivityService {
 
   /// Start monitoring all Live Activities, push tokens, and lifecycle state changes.
   public func startMonitoring(enablePush: Bool) {
+    stopMonitoring()
+
     let onTokenUpdated: (@Sendable (String, String) -> Void)?
     let onPushToStartUpdated: (@Sendable (String) -> Void)?
 

packages/ios-client/ios/shared/VoltraEventBus.swift

@@ -41,6 +41,11 @@ public class VoltraEventBus {
     lock.lock()
     defer { lock.unlock() }
 
+    if let observer {
+      NotificationCenter.default.removeObserver(observer)
+      self.observer = nil
+    }
+
     // 1. Replay persisted events from UserDefaults (interactions from widget)
     let persistedEvents = VoltraPersistentEventQueue.popAll()
     for event in persistedEvents {