feat: 完成现有小程序接口的全部迁移至新后端

apps/server/src/worksheets/worksheet.module.ts

@@ -18,5 +18,6 @@ import { WorksheetService } from './worksheet.service';
         AdminResourceController,
     ],
     providers: [WorksheetService, PublicationService, ResourcePreviewService],
+    exports: [WorksheetService],
 })
 export class WorksheetModule {}

apps/server/src/worksheets/worksheet.service.ts

@@ -68,6 +68,17 @@ export class WorksheetService {
         @Inject(SERVER_CONFIG) private readonly config: ServerConfig,
     ) {}
 
+    /** 首页和推荐在调用者事务中获取同一份公开快照，复用完整可见性与资产解析规则。 */
+    async snapshot(tx: Prisma.TransactionClient): Promise<PublicWorksheet[]> {
+        const rows = await tx.$queryRaw<
+            WorksheetRow[]
+        >`SELECT ${this.columns(this.isNewExpression(new Date()))}
+            FROM public.worksheets w JOIN public.assets a ON a.id=w.preview_asset_id
+            WHERE ${visibleWorksheet} ORDER BY w.sort_order, w.updated_at DESC, w.id LIMIT 10001`;
+        if (rows.length > 10000) throw new Error('Site snapshot exceeds limit');
+        return rows.map((row) => this.toPublic(row));
+    }
+
     /** 公开查询不提供状态开关，固定要求题型及全部上级分类上线。 */
     async list(input: WorksheetQueryDto): Promise<WorksheetPage> {
         const query = parseWorksheetQuery(input);