refactor: 完全重构为 Anki 兼容数据结构

- 用 Deck 替换 Folder
- 用 Note + Card 替换 Pair (双向复习)
- 添加 NoteType (卡片模板)
- 添加 Revlog (复习历史)
- 实现 SM-2 间隔重复算法
- 更新所有前端页面
- 添加数据库迁移

src/modules/deck/deck-service-dto.ts

@@ -0,0 +1,86 @@
+import { Visibility } from "../../../generated/prisma/enums";
+
+export type ServiceInputCreateDeck = {
+  name: string;
+  desc?: string;
+  userId: string;
+  visibility?: Visibility;
+};
+
+export type ServiceInputUpdateDeck = {
+  deckId: number;
+  name?: string;
+  desc?: string;
+  visibility?: Visibility;
+  collapsed?: boolean;
+};
+
+export type ServiceInputDeleteDeck = {
+  deckId: number;
+};
+
+export type ServiceInputGetDeckById = {
+  deckId: number;
+};
+
+export type ServiceInputGetDecksByUserId = {
+  userId: string;
+};
+
+export type ServiceInputGetPublicDecks = {
+  limit?: number;
+  offset?: number;
+};
+
+export type ServiceInputCheckOwnership = {
+  deckId: number;
+  userId: string;
+};
+
+export type ServiceOutputDeck = {
+  id: number;
+  name: string;
+  desc: string;
+  userId: string;
+  visibility: Visibility;
+  collapsed: boolean;
+  conf: unknown;
+  createdAt: Date;
+  updatedAt: Date;
+  cardCount?: number;
+};
+
+export type ServiceOutputPublicDeck = ServiceOutputDeck & {
+  userName: string | null;
+  userUsername: string | null;
+  favoriteCount: number;
+};
+
+export type ServiceInputToggleDeckFavorite = {
+  deckId: number;
+  userId: string;
+};
+
+export type ServiceInputCheckDeckFavorite = {
+  deckId: number;
+  userId: string;
+};
+
+export type ServiceInputSearchPublicDecks = {
+  query: string;
+  limit?: number;
+  offset?: number;
+};
+
+export type ServiceInputGetPublicDeckById = {
+  deckId: number;
+};
+
+export type ServiceOutputDeckFavorite = {
+  isFavorited: boolean;
+  favoriteCount: number;
+};
+
+export type ServiceOutputUserFavoriteDeck = ServiceOutputPublicDeck & {
+  favoritedAt: Date;
+};