feat(core): add RecommendationShelf section with personalization tracking

packages/api/src/platforms/vtex/typeDefs/mutation.graphql

@@ -35,4 +35,8 @@ type Mutation {
   startOrderEntryOperation(
     data: IOrderEntryOperation!
   ): StoreOrderEntryOperationResult @auth
+  """
+  Starts an anonymous personalization session for the current shopper.
+  """
+  startRecommendationSession: Boolean!
 }

packages/api/src/platforms/vtex/typeDefs/query.graphql

@@ -470,6 +470,15 @@ type Query {
   Returns the items in an orderForm by its ID.
   """
   orderFormItems(orderFormId: String!): [StoreOrderFormCartItem!]! @auth
+  """
+  Returns personalized product recommendations for a given campaign.
+  """
+  recommendations(
+    campaignVrn: String!
+    userId: String
+    products: [String!]
+  ): RecommendationResponse!
+    @cacheControl(scope: "private", sMaxAge: 120, staleWhileRevalidate: 3600)
 }
 
 type ValidateUserData {