Replace EventLogger with typed AnalyticsManager using PostHog

Complete analytics overhaul: delete EventLogger.swift, create Analytics.swift
with typed event enum (~45 events), screen tracking, super properties
(theme, icon pack, voting layout, etc.), session replay with kill switch,
autocapture, and network telemetry. Replace all 99 call sites across 38 files
with compiler-enforced typed events in object_action naming convention.

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

Shared/LocalNotification.swift

@@ -21,10 +21,10 @@ class LocalNotification {
     public class func testIfEnabled(completion: @escaping (Result<Bool, Error>) -> Void) {
         UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { success, error in
             if success {
-                EventLogger.log(event: "local_notification_enabled")
+                AnalyticsManager.shared.track(.notificationEnabled)
                 completion(.success(true))
             } else if let error = error {
-                EventLogger.log(event: "local_notification_disabled")
+                AnalyticsManager.shared.track(.notificationDisabled)
                 completion(.failure(error))
             }
         }