fix learn endpoint

src/modules/cards/entities/cards.entity.ts

@@ -9,6 +9,8 @@ export class Card {
   shots: number
   answerImg: string
   questionImg: string
+  questionVideo: string
+  answerVideo: string
   rating: number
   created: Date
   updated: Date
@@ -18,3 +20,11 @@ export class PaginatedCards {
   items: Card[]
   pagination: Pagination
 }
+
+export class PaginatedCardsWithGrade {
+  pagination: Pagination
+  items: CardWithGrade[]
+}
+export class CardWithGrade extends Card {
+  grades?: Array<{ grade: number }>
+}