add decks documentation

src/modules/decks/entities/deck.entity.ts

@@ -1 +1,26 @@
-export class Deck {}
+import { Pagination } from '../../../infrastructure/common/pagination/pagination.dto'
+
+export class Deck {
+  id: string
+  userId: string
+  name: string
+  isPrivate: boolean
+  shots: number
+  cover: string | null
+  rating: number
+  created: Date
+  updated: Date
+  cardsCount: number
+  author: DeckAuthor
+}
+
+export class DeckAuthor {
+  id: string
+  name: string
+}
+
+export class PaginatedDecks {
+  items: Deck[]
+  pagination: Pagination
+  maxCardsCount: number
+}