Fix iOS analytics by calling Swift AnalyticsManager instead of Kotlin no-op stub

PostHogAnalytics.shared.initialize() was calling the Kotlin actual object which
is a no-op on iOS. Replaced with AnalyticsManager.shared.configure() so the
PostHog SDK actually initializes. Also switched to anonymous-only person profiles.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

iosApp/iosApp/Analytics/AnalyticsManager.swift

@@ -41,9 +41,8 @@ final class AnalyticsManager {
 
         let config = PostHogConfig(apiKey: Self.apiKey, host: Self.host)
 
-        // Person profiles — required so events create person records
-        // and appear in the PostHog Events Explorer / Activity view.
-        config.personProfiles = .always
+        // Anonymous-only — no user identification, events use anonymous IDs
+        config.personProfiles = .never
 
         // Auto-capture
         config.captureElementInteractions = true

iosApp/iosApp/Login/LoginViewModel.swift

@@ -146,8 +146,6 @@ class LoginViewModel: ObservableObject {
             // APILayer.logout clears DataManager
             try? await APILayer.shared.logout()
 
-
-
             SubscriptionCacheWrapper.shared.clear()
             PushNotificationManager.shared.clearRegistrationCache()
 

iosApp/iosApp/iOSApp.swift

@@ -45,8 +45,8 @@ struct iOSApp: App {
         TokenStorage.shared.initialize(manager: TokenManager.Companion.shared.getInstance())
 
         if !UITestRuntime.isEnabled {
-            // Initialize PostHog Analytics
-            PostHogAnalytics.shared.initialize()
+            // Initialize PostHog Analytics (must use Swift AnalyticsManager, not the Kotlin stub)
+            AnalyticsManager.shared.configure()
         }
 
         // Initialize lookups at app start (public endpoints, no auth required)