feat: anonymous analytics with PostHog (#3)

meetingnotes/MeetingnotesApp.swift

@@ -7,6 +7,7 @@
 
 import SwiftUI
 import Sparkle
+import PostHog
 
 @main
 struct MeetingnotesApp: App {
@@ -14,6 +15,22 @@ struct MeetingnotesApp: App {
 
     init() {
         updaterController = SPUStandardUpdaterController(updaterDelegate: nil, userDriverDelegate: nil)
+        // Setup PostHog analytics for anonymous tracking
+        let posthogAPIKey = "phc_Wt8sWUzUF7YPF50aQ0B1qbfA5SJWWR341zmXCaIaIRJ"
+        let posthogHost = "https://us.i.posthog.com"
+        let config = PostHogConfig(apiKey: posthogAPIKey, host: posthogHost)
+        // Only capture anonymous events
+        config.personProfiles = .never
+        // Enable lifecycle and screen view autocapture
+        config.captureApplicationLifecycleEvents = true
+        config.captureScreenViews = true
+        PostHogSDK.shared.setup(config)
+        // Register environment as a super property
+        #if DEBUG
+        PostHogSDK.shared.register(["environment": "dev"] )
+        #else
+        PostHogSDK.shared.register(["environment": "prod"] )
+        #endif
     }
 
     var body: some Scene {