1.0.4: Smarter auto-assign, quick dish entry, calendar fix, frictionless onboarding

- AutocompleteEngine: no-repeat rule now applies to all dishes (not just tagless ones); fallback still allows repeats when no alternative exists
- CalendarService: update existing events instead of delete+create to prevent duplicates; fix weekStartDate using plan date instead of currentWeekStart
- DishFormView: form stays open after saving in create mode for quick multi-dish entry; Done button to close; saved feedback banner
- OnboardingViewModel/FirstDishesStepView: dishes are now optional during onboarding; Finish button always enabled
- AnalyticsService: new events — onboarding_step_viewed(step) and auto_assign_used(filled, unfilled)
- Localization: dish_done and first_dishes_optional_hint added in 6 languages; release notes updated in all 6 languages
- Version bump: 1.0.3 → 1.0.4 (build 19)

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

MealMood/Views/Onboarding/FirstDishesStepView.swift

@@ -51,6 +51,13 @@ struct FirstDishesStepView: View {
                         .frame(maxWidth: .infinity, alignment: .leading)
                         .padding(.horizontal, 24)
 
+                    Text("first_dishes_optional_hint")
+                        .font(.mealMoodCaption)
+                        .foregroundColor(.mealMoodCoral.opacity(0.8))
+                        .frame(maxWidth: .infinity, alignment: .leading)
+                        .padding(.horizontal, 24)
+                        .padding(.top, -16)
+
                     // New dish form
                     VStack(spacing: 12) {
                         TextField("first_dishes_name_placeholder", text: $viewModel.newDishName)
@@ -232,7 +239,7 @@ struct FirstDishesStepView: View {
                         HapticManager.shared.notification(type: .success)
                         onFinish()
                     },
-                    isEnabled: viewModel.addedDishes.count >= 2
+                    isEnabled: true
                 )
                 .padding(.horizontal, 24)
                 .padding(.top, 12)