fix: gate posthog analytics events

src/mobile/lib/main.dart

@@ -71,7 +71,7 @@ void main() async {
         final postHogConfig = PostHogConfig(postHogApiKey);
         postHogConfig.host = postHogHost;
         postHogConfig.debug = !kReleaseMode;
-        postHogConfig.captureApplicationLifecycleEvents = true;
+        postHogConfig.captureApplicationLifecycleEvents = false;
         postHogConfig.personProfiles = PostHogPersonProfiles.always;
         try {
           await Posthog().setup(postHogConfig);

src/mobile/lib/src/app/auth/bloc/auth_bloc.dart

@@ -88,7 +88,6 @@ class AuthBloc extends Bloc<AuthEvent, AuthState> with UiLoggy {
       await authRepository.loginWithEmailAndPassword(
           event.username, event.password);
 
-      await AnalyticsService().trackUserLoggedIn();
       final userId =
           await AuthHelper.getCurrentUserId(suppressGuestWarning: true);
       if (userId != null) {
@@ -97,6 +96,7 @@ class AuthBloc extends Bloc<AuthEvent, AuthState> with UiLoggy {
           userProperties: {'email': event.username},
         );
       }
+      await AnalyticsService().trackUserLoggedIn();
       GlobalAuthManager.instance.resetSessionExpiredGuard();
       emit(AuthLoaded(AuthPurpose.login));
     } catch (e) {
@@ -119,7 +119,6 @@ class AuthBloc extends Bloc<AuthEvent, AuthState> with UiLoggy {
     emit(AuthLoading());
     try {
       await authRepository.registerWithEmailAndPassword(event.model);
-      await AnalyticsService().trackUserRegistered();
       final userId =
           await AuthHelper.getCurrentUserId(suppressGuestWarning: true);
       if (userId != null) {
@@ -128,6 +127,7 @@ class AuthBloc extends Bloc<AuthEvent, AuthState> with UiLoggy {
           userProperties: {'email': event.model.email ?? ''},
         );
       }
+      await AnalyticsService().trackUserRegistered();
       GlobalAuthManager.instance.resetSessionExpiredGuard();
       emit(AuthLoaded(AuthPurpose.register));
     } catch (e) {
@@ -198,12 +198,12 @@ class AuthBloc extends Bloc<AuthEvent, AuthState> with UiLoggy {
     emit(AuthLoading());
     try {
       await socialAuthRepository.loginWithProvider(event.provider);
-      await AnalyticsService().trackUserLoggedIn(method: event.provider);
       final userId =
           await AuthHelper.getCurrentUserId(suppressGuestWarning: true);
       if (userId != null) {
         await AnalyticsService().setUserIdentity(userId: userId);
       }
+      await AnalyticsService().trackUserLoggedIn(method: event.provider);
       GlobalAuthManager.instance.resetSessionExpiredGuard();
       loggy.info('OAuth login successful via ${event.provider}');
       emit(AuthLoaded(AuthPurpose.login));

src/mobile/lib/src/app/shared/services/analytics_service.dart

@@ -12,6 +12,10 @@ class AnalyticsService with UiLoggy {
     String eventName, {
     Map<String, Object>? properties,
   }) async {
+    if (!FeatureFlagService.instance.isAnalyticsEnabled) {
+      return;
+    }
+
     try {
       await Posthog().capture(
         eventName: eventName,

src/mobile/lib/src/app/shared/services/feature_flag_service.dart

@@ -23,6 +23,8 @@ class FeatureFlagService with UiLoggy {
 
   bool isEnabled(AppFeatureFlag flag) => _flags[flag] ?? false;
 
+  bool get isAnalyticsEnabled => isEnabled(AppFeatureFlag.researchMode);
+
   Future<void> reloadFlags() async {
     try {
       await Posthog().reloadFeatureFlags();