Add comprehensive WCAG 2.1 AA accessibility support

- Add VoiceOver labels and hints to all voting layouts, settings, widgets,
  onboarding screens, and entry cells
- Add Reduce Motion support to button animations throughout the app
- Ensure 44x44pt minimum touch targets on widget mood buttons
- Enhance AccessibilityHelpers with Dynamic Type support, ScaledValue wrapper,
  and VoiceOver detection utilities
- Gate premium features (Insights, Month/Year views) behind subscription
- Update widgets to show subscription prompts for non-subscribers

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

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

Shared/Views/MonthView/MonthView.swift

@@ -43,6 +43,24 @@ struct MonthView: View {
     @State private var trialWarningHidden = false
     @State private var showSubscriptionStore = false
 
+    /// Filters month data to only current month when subscription/trial expired
+    private var filteredMonthData: [Int: [Int: [MoodEntryModel]]] {
+        guard iapManager.shouldShowPaywall else {
+            return viewModel.grouped
+        }
+
+        // Only show current month when paywall should show
+        let currentMonth = Calendar.current.component(.month, from: Date())
+        let currentYear = Calendar.current.component(.year, from: Date())
+
+        var filtered: [Int: [Int: [MoodEntryModel]]] = [:]
+        if let yearData = viewModel.grouped[currentYear],
+           let monthData = yearData[currentMonth] {
+            filtered[currentYear] = [currentMonth: monthData]
+        }
+        return filtered
+    }
+
     var body: some View {
         ZStack {
             if viewModel.hasNoData {
@@ -51,7 +69,7 @@ struct MonthView: View {
             } else {
                 ScrollView {
                     VStack(spacing: 16) {
-                        ForEach(viewModel.grouped.sorted(by: { $0.key > $1.key }), id: \.key) { year, months in
+                        ForEach(filteredMonthData.sorted(by: { $0.key > $1.key }), id: \.key) { year, months in
                             // for each month
                             ForEach(months.sorted(by: { $0.key > $1.key }), id: \.key) { month, entries in
                                 MonthCard(
@@ -90,7 +108,7 @@ struct MonthView: View {
                         }
                     )
                 }
-                .disabled(iapManager.shouldShowPaywall)
+                .scrollDisabled(iapManager.shouldShowPaywall)
             }
 
             // Hidden text to trigger updates when custom tint changes