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-repository-dto.ts

@@ -0,0 +1,90 @@
+import { Visibility } from "../../../generated/prisma/enums";
+
+export interface RepoInputCreateDeck {
+  name: string;
+  desc?: string;
+  userId: string;
+  visibility?: Visibility;
+}
+
+export interface RepoInputUpdateDeck {
+  id: number;
+  name?: string;
+  desc?: string;
+  visibility?: Visibility;
+  collapsed?: boolean;
+}
+
+export interface RepoInputGetDeckById {
+  id: number;
+}
+
+export interface RepoInputGetDecksByUserId {
+  userId: string;
+}
+
+export interface RepoInputGetPublicDecks {
+  limit?: number;
+  offset?: number;
+  orderBy?: "createdAt" | "name";
+}
+
+export interface RepoInputDeleteDeck {
+  id: number;
+}
+
+export type RepoOutputDeck = {
+  id: number;
+  name: string;
+  desc: string;
+  userId: string;
+  visibility: Visibility;
+  collapsed: boolean;
+  conf: unknown;
+  createdAt: Date;
+  updatedAt: Date;
+  cardCount?: number;
+};
+
+export type RepoOutputPublicDeck = RepoOutputDeck & {
+  userName: string | null;
+  userUsername: string | null;
+  favoriteCount: number;
+};
+
+export type RepoOutputDeckOwnership = {
+  userId: string;
+};
+
+export interface RepoInputToggleDeckFavorite {
+  deckId: number;
+  userId: string;
+}
+
+export interface RepoInputCheckDeckFavorite {
+  deckId: number;
+  userId: string;
+}
+
+export interface RepoInputSearchPublicDecks {
+  query: string;
+  limit?: number;
+  offset?: number;
+}
+
+export interface RepoInputGetPublicDeckById {
+  deckId: number;
+}
+
+export type RepoOutputDeckFavorite = {
+  isFavorited: boolean;
+  favoriteCount: number;
+};
+
+export interface RepoInputGetUserFavoriteDecks {
+  userId: string;
+}
+
+export type RepoOutputUserFavoriteDeck = RepoOutputPublicDeck & {
+  favoritedAt: Date;
+};