1.0.6: Priority dishes, day rules, auto-assign CTA, tap-to-replace, export incomplete weeks, Sunday notification

- Dish.isPriority: mark dishes as priority; auto-assign gives them 2.5x weight
- Tag.dayRestriction: restrict tags to weekdays or weekend only
- Auto-assign CTA banner shown when there are empty slots (was hidden in context menu)
- Tap on filled slot opens picker to replace dish directly (no need to remove first)
- Export callout visible as soon as ≥1 slot is filled (not only when week is complete)
- WeekPlanShareView shows localized "TBD" / "Eating out" for empty/eating-out slots
- Second Sunday 17:00 push notification to plan next week
- DishDrawer sorts: priority first, then by historical usage, then alphabetically
- Search in SlotDishPickerSheet already shipped in 1.0.5 (verified ✓)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

MealMood/Views/Dishes/DishFormView.swift

@@ -130,6 +130,30 @@ struct DishFormView: View {
                             }
                         }
 
+                        // Priority toggle
+                        Toggle(isOn: Binding(
+                            get: { viewModel.isPriority },
+                            set: { viewModel.isPriority = $0 }
+                        )) {
+                            VStack(alignment: .leading, spacing: 2) {
+                                HStack(spacing: 6) {
+                                    Image(systemName: "star.fill")
+                                        .foregroundColor(.mealMoodCoral)
+                                        .font(.system(size: 13))
+                                    Text("dish_priority")
+                                        .font(.mealMoodBodyBold)
+                                        .foregroundColor(.mealMoodTextPrimary)
+                                }
+                                Text("dish_priority_desc")
+                                    .font(.mealMoodCaption)
+                                    .foregroundColor(.mealMoodTextSecondary)
+                            }
+                        }
+                        .tint(.mealMoodCoral)
+                        .padding(16)
+                        .background(Color.mealMoodSurface)
+                        .cornerRadius(14)
+
                         if showDishLimitUpsell && reachedFreeDishLimit {
                             PremiumUpsellBanner(
                                 messageKey: "premium_limit_dishes",