feat: 为批量归档补充批量恢复

apps/server/src/rooms/rooms.service.ts

@@ -306,6 +306,30 @@ export class RoomsService {
     return { message: '已恢复' };
   }
 
+  async batchRestore(ids: number[]) {
+    const uniqueIds = [...new Set(ids || [])];
+    if (uniqueIds.length === 0) throw new BadRequestException('请选择要恢复的宿舍');
+    if (uniqueIds.some((id) => !Number.isInteger(id) || id <= 0)) {
+      throw new BadRequestException('宿舍 ID 无效');
+    }
+    const rooms = await this.repo.find({ where: { id: In(uniqueIds) } });
+    if (rooms.length !== uniqueIds.length) throw new NotFoundException('部分宿舍不存在');
+
+    const targetIds = rooms.filter((room) => room.status === 'archived').map((room) => room.id);
+    const skipped = rooms.length - targetIds.length;
+    let restored = 0;
+    if (targetIds.length > 0) {
+      const result = await this.repo
+        .createQueryBuilder()
+        .update()
+        .set({ status: 'available' })
+        .where('id IN (:...ids)', { ids: targetIds })
+        .execute();
+      restored = result.affected || 0;
+    }
+    return { message: `已批量恢复 ${restored} 间宿舍`, restored, skipped };
+  }
+
   async getRoomVisual(asOf?: string) {
     // asOf 为空 = 实时（今天）。带 asOf = 还原该日期结束时的历史入住快照。
     const isHistorical = !!asOf;