polish iOS study flow

mobile/ios-app/Features/Feed/FeedView.swift

@@ -2,6 +2,7 @@ import SwiftUI
 
 struct FeedView: View {
     @EnvironmentObject private var localization: LocalizationStore
+    @EnvironmentObject private var analytics: HermesAnalyticsClient
 
     var body: some View {
         VStack(alignment: .leading, spacing: HermesTheme.sectionSpacing) {
@@ -40,11 +41,17 @@ struct FeedView: View {
             }
 
             Button {
+                analytics.track("next_round_requested", attributes: ["screen_name": "feed"])
+                analytics.track("cta_pressed", attributes: ["screen_name": "feed", "action": "watch_preview"])
             } label: {
                 Text(localization.string(for: "feed.cta"))
             }
                 .buttonStyle(HermesPrimaryButtonStyle())
         }
         .hermesCard(elevated: true)
+        .onAppear {
+            analytics.track("feed_viewed", attributes: ["screen_name": "feed"])
+            analytics.track("screen_viewed", attributes: ["screen_name": "feed"])
+        }
     }
 }