Add premium features and reorganize Settings tab

Premium Features:
- Journal notes and photo attachments for mood entries
- Data export (CSV and PDF reports)
- Privacy lock with Face ID/Touch ID
- Apple Health integration for mood correlation
- 4 new personality packs (Motivational Coach, Zen Master, Best Friend, Data Analyst)

Settings Tab Reorganization:
- Combined Customize and Settings into single tab with segmented control
- Added upgrade banner with trial countdown above segment
- "Why Upgrade?" sheet showing all premium benefits
- Subscribe button opens improved StoreKit 2 subscription view

UI Improvements:
- Enhanced subscription store with feature highlights
- Entry detail view for viewing/editing notes and photos
- Removed duplicate subscription banners from tab content

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Shared/Views/FeelsSubscriptionStoreView.swift

@@ -14,25 +14,56 @@ struct FeelsSubscriptionStoreView: View {
 
     var body: some View {
         SubscriptionStoreView(groupID: IAPManager.subscriptionGroupID) {
-            VStack(spacing: 16) {
-                Image(systemName: "heart.fill")
-                    .font(.system(size: 60))
-                    .foregroundStyle(.pink)
+            VStack(spacing: 20) {
+                // App icon or logo
+                ZStack {
+                    Circle()
+                        .fill(
+                            LinearGradient(
+                                colors: [.pink.opacity(0.3), .orange.opacity(0.2)],
+                                startPoint: .topLeading,
+                                endPoint: .bottomTrailing
+                            )
+                        )
+                        .frame(width: 100, height: 100)
 
-                Text(String(localized: "subscription_store_title"))
-                    .font(.title)
-                    .bold()
+                    Image(systemName: "heart.fill")
+                        .font(.system(size: 44))
+                        .foregroundStyle(
+                            LinearGradient(
+                                colors: [.pink, .red],
+                                startPoint: .top,
+                                endPoint: .bottom
+                            )
+                        )
+                }
 
-                Text(String(localized: "subscription_store_subtitle"))
-                    .font(.body)
-                    .foregroundStyle(.secondary)
-                    .multilineTextAlignment(.center)
+                VStack(spacing: 8) {
+                    Text("Unlock Premium")
+                        .font(.system(size: 28, weight: .bold, design: .rounded))
+
+                    Text("Get unlimited access to all features")
+                        .font(.system(size: 16))
+                        .foregroundStyle(.secondary)
+                        .multilineTextAlignment(.center)
+                }
+
+                // Feature highlights
+                VStack(alignment: .leading, spacing: 12) {
+                    FeatureHighlight(icon: "calendar", text: "Month & Year Views")
+                    FeatureHighlight(icon: "lightbulb.fill", text: "AI-Powered Insights")
+                    FeatureHighlight(icon: "photo.fill", text: "Photos & Journal Notes")
+                    FeatureHighlight(icon: "heart.fill", text: "Health Data Correlation")
+                }
+                .padding(.top, 8)
             }
-            .padding()
+            .padding(.horizontal, 20)
+            .padding(.vertical, 10)
         }
         .subscriptionStoreControlStyle(.prominentPicker)
         .storeButton(.visible, for: .restorePurchases)
         .subscriptionStoreButtonLabel(.multiline)
+        .tint(.pink)
         .onInAppPurchaseCompletion { _, result in
             if case .success(.success(_)) = result {
                 dismiss()
@@ -41,6 +72,26 @@ struct FeelsSubscriptionStoreView: View {
     }
 }
 
+// MARK: - Feature Highlight Row
+struct FeatureHighlight: View {
+    let icon: String
+    let text: String
+
+    var body: some View {
+        HStack(spacing: 12) {
+            Image(systemName: "checkmark.circle.fill")
+                .font(.system(size: 18))
+                .foregroundColor(.green)
+
+            Text(text)
+                .font(.system(size: 15, weight: .medium))
+                .foregroundColor(.primary)
+
+            Spacer()
+        }
+    }
+}
+
 #Preview {
     FeelsSubscriptionStoreView()
         .environmentObject(IAPManager())