1.2.0: contextual notifications + in-onboarding auto-fill (aha moment)

- New "Week Ready" onboarding step: auto-fills the first week inline right
  after dish creation, then pitches the Sunday reminder with context before
  requesting OS notification permission (no more cold prompt on Home)
- Notifications section in Settings: weekly reminder toggle, deep-link to
  system settings when permission is denied
- NotificationService: remindersEnabled preference, requestPermission(),
  authorizationStatus(), cancelAllReminders()
- Post-onboarding premium prompt deferred to 2nd session (paywall was just
  shown as the final onboarding step — 2s-later alert was prompt fatigue)
- Back navigation blocked after onboarding commit to avoid duplicate dishes
- 10 new strings × 6 languages

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UtWT52pAE91D7mbDda1cAM

MealMood/ViewModels/OnboardingViewModel.swift

@@ -28,7 +28,10 @@ final class OnboardingViewModel: ObservableObject {
     @Published var addedDishes: [(name: String, tagIds: [UUID])] = []
     let maxOnboardingDishes = 10
 
-    let totalSteps = 6
+    let totalSteps = 7
+
+    /// Slots filled by the in-onboarding auto-fill (aha moment step).
+    @Published var autoFilledCount: Int = 0
 
     var canContinue: Bool {
         switch currentStep {
@@ -37,7 +40,8 @@ final class OnboardingViewModel: ObservableObject {
         case 2: return true // Weekends (toggle)
         case 3: return true // Calendar (optional)
         case 4: return true // Dishes are optional
-        case 5: return true // Paywall (always skippable)
+        case 5: return true // Week ready (aha moment + reminder opt-in)
+        case 6: return true // Paywall (always skippable)
         default: return false
         }
     }
@@ -161,10 +165,9 @@ final class OnboardingViewModel: ObservableObject {
                 AnalyticsService.logDishAdded(tagCount: dishData.tagIds.count, source: "onboarding")
             }
             AnalyticsService.logOnboardingCompleted(dishCount: onboardingDishCount)
-            // If the user added dishes, auto-fill their first week on launch so they
-            // land on a ready plan instead of an empty one. Otherwise fall back to the
-            // home auto-assign prompt.
-            UserDefaults.standard.set(createdDishes, forKey: Self.pendingAutoFillOnLaunchKey)
+            // Auto-fill now happens inline in the Week Ready onboarding step, so the
+            // launch flag stays off. Users without dishes still get the home prompt.
+            UserDefaults.standard.set(false, forKey: Self.pendingAutoFillOnLaunchKey)
             UserDefaults.standard.set(!createdDishes, forKey: Self.pendingAutoAssignPromptKey)
             UserDefaults.standard.set(true, forKey: Self.pendingPremiumPromptKey)
             return true
@@ -173,4 +176,39 @@ final class OnboardingViewModel: ObservableObject {
             return false
         }
     }
+
+    /// Fills the first week right inside onboarding (the "aha moment" step) using
+    /// the same engine as the home auto-complete. Returns the number of filled slots.
+    @discardableResult
+    func autoFillFirstWeek(context: ModelContext) -> Int {
+        autoFilledCount = 0
+        guard !addedDishes.isEmpty else { return 0 }
+
+        let dishes = (try? context.fetch(FetchDescriptor<Dish>())) ?? []
+        let tags = (try? context.fetch(FetchDescriptor<Tag>())) ?? []
+        let weekStart = Date().startOfWeek()
+        let plans = (try? context.fetch(FetchDescriptor<WeekPlan>())) ?? []
+        guard let plan = plans.first(where: { $0.weekStartDate == weekStart }) else { return 0 }
+
+        let emptySlots = plan.slots.filter { $0.dishId == nil && !$0.isEatingOut }
+        guard !emptySlots.isEmpty else { return 0 }
+
+        let result = AutocompleteEngine.autocomplete(
+            emptySlots: emptySlots,
+            currentPlan: plan,
+            allDishes: dishes,
+            allTags: tags,
+            recentPlans: [],
+            rejectionCounts: FeedbackStore.rejectionCounts()
+        )
+        plan.updatedAt = Date()
+        try? context.save()
+
+        AnalyticsService.logAutoAssignUsed(
+            filledSlots: result.filledSlots.count,
+            unfilledSlots: result.unfilledCount
+        )
+        autoFilledCount = result.filledSlots.count
+        return result.filledSlots.count
+    }
 }