2.0: weekly shopping list from planned dishes

- ShoppingItem model (per-week lines; dish-derived or free-text) + schema.
- ShoppingListService.reconcile mirrors planned dishes' ingredients into the
  list, preserving check-off state and user items; plain-text export helper.
- ShoppingListView: grouped by dish, check-off, swipe-delete, free-text adds,
  clear-checked, ShareLink export, and inline on-device "Generate" for planned
  dishes without ingredients (paywall after 3 free generations,
  source=ingredient_generation).
- Home toolbar: cart entry point (all users) + sheet.
- Analytics: shopping_list_opened, shopping_item_added, ingredients_generated.
- Localized in all 6 languages.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BkanrydYtrme8wipTzWssG

MealMood/Services/AnalyticsService.swift

@@ -23,6 +23,11 @@ enum AnalyticsEvent {
     static let autoAssignUsed = "auto_assign_used"
     static let weekCopiedPrevious = "week_copied_previous"
 
+    // Shopping list (2.0)
+    static let shoppingListOpened = "shopping_list_opened"
+    static let shoppingItemAdded = "shopping_item_added"
+    static let ingredientsGenerated = "ingredients_generated"
+
     // Onboarding
     static let onboardingStepViewed = "onboarding_step_viewed"
 
@@ -120,6 +125,24 @@ enum AnalyticsService {
         ])
     }
 
+    static func logShoppingListOpened(itemCount: Int, missingDishes: Int) {
+        logEvent(AnalyticsEvent.shoppingListOpened, parameters: [
+            "item_count": itemCount,
+            "missing_dishes": missingDishes
+        ])
+    }
+
+    static func logShoppingItemAdded() {
+        logEvent(AnalyticsEvent.shoppingItemAdded)
+    }
+
+    static func logIngredientsGenerated(lineCount: Int, source: String) {
+        logEvent(AnalyticsEvent.ingredientsGenerated, parameters: [
+            "line_count": lineCount,
+            "source": source
+        ])
+    }
+
     static func logICloudSyncToggled(enabled: Bool) {
         logEvent(AnalyticsEvent.iCloudSyncToggled, parameters: ["enabled": enabled])
     }