platos: paywall inmediato al llegar al limite y orden alfabetico

- attemptAddDish/attemptCreateDish: el limite gratuito se comprueba en el
  tap de anadir plato (DishListView y los 3 puntos de Home) y muestra el
  DishLimitModal -> paywall directamente; antes solo se comprobaba al
  guardar el formulario y el usuario podia rellenarlo entero para nada
- DishLimitModal compartido (era private de DishFormView) y
  PaywallPresentation promovido a PremiumView.swift; DishListView usa
  sheet(item:) tambien para el banner (source dish_counter vs dish_limit)
- Boton en la toolbar de Mis Platos que alterna orden alfabetico
  (persistido en dish_list_alphabetical_sort); borrado por swipe corregido
  para usar la lista mostrada

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013H6bXqGX1ygwib1Dm3n3UG

MealMood/Views/Home/HomeView.swift

@@ -16,6 +16,7 @@ struct HomeView: View {
     // separate @State vars the sheet sometimes rendered before the source was
     // set and logged paywall_viewed as "unknown".
     @State private var paywallPresentation: PaywallPresentation?
+    @State private var showDishLimitModal: Bool = false
     @State private var showMonthlyHistory: Bool = false
     @State private var showStats: Bool = false
     @State private var showWeekLimitUpsell: Bool = false
@@ -451,6 +452,19 @@ struct HomeView: View {
         .sheet(isPresented: $viewModel.showDishForm) {
             DishFormView()
         }
+        .sheet(isPresented: $showDishLimitModal) {
+            DishLimitModal(
+                onSeePremium: {
+                    showDishLimitModal = false
+                    DispatchQueue.main.asyncAfter(deadline: .now() + 0.35) {
+                        paywallPresentation = PaywallPresentation(source: "dish_limit")
+                    }
+                },
+                onDismiss: { showDishLimitModal = false }
+            )
+            .presentationDetents([.medium])
+            .presentationDragIndicator(.visible)
+        }
         .sheet(isPresented: $showWeekPicker) {
             NavigationStack {
                 Form {
@@ -516,7 +530,7 @@ struct HomeView: View {
                     onCreateDish: {
                         selectedEmptySlotId = nil
                         DispatchQueue.main.asyncAfter(deadline: .now() + 0.15) {
-                            viewModel.showDishForm = true
+                            attemptCreateDish()
                         }
                     },
                     onEatingOut: {
@@ -554,7 +568,7 @@ struct HomeView: View {
                     onCreateDish: {
                         selectedFilledSlotId = nil
                         DispatchQueue.main.asyncAfter(deadline: .now() + 0.15) {
-                            viewModel.showDishForm = true
+                            attemptCreateDish()
                         }
                     }
                 )
@@ -653,11 +667,6 @@ struct HomeView: View {
         }
     }
 
-    private struct PaywallPresentation: Identifiable {
-        let id = UUID()
-        let source: String
-    }
-
     private struct SlotDishPickerSheet: View {
         let dishes: [Dish]
         let tags: [Tag]
@@ -804,7 +813,7 @@ struct HomeView: View {
             language: settings.languageEnum.resolved(),
             usedDishIds: Set(plan.slotList.compactMap(\.dishId)),
             usageRanking: dishUsageCounts,
-            onAddDish: { viewModel.showDishForm = true },
+            onAddDish: { attemptCreateDish() },
             onQuickAssignDish: { dish in
                 viewModel.assignDishToFirstFreeSlot(
                     dish,
@@ -1183,6 +1192,20 @@ struct HomeView: View {
         AnalyticsService.logEvent("widget_promo_dismissed")
     }
 
+    /// Gate every "create dish" entry point on the free limit — the check used
+    /// to live only in the form's save button, so a user at the limit could
+    /// open and fill the whole form before hitting the paywall.
+    private func attemptCreateDish() {
+        let isPremium = allSettings.first?.isPremium ?? false
+        if PremiumAccess.hasReachedFreeDishLimit(dishCount: dishes.count, isPremium: isPremium) {
+            AnalyticsService.logDishLimitHit()
+            HapticManager.shared.notification(type: .warning)
+            showDishLimitModal = true
+        } else {
+            viewModel.showDishForm = true
+        }
+    }
+
     private func evaluateReviewPrompt() {
         let descriptor = FetchDescriptor<WeekPlan>()
         guard let plans = try? context.fetch(descriptor) else { return }