feat: 支持新的关卡数据结构

src/modules/share/share.service.ts

@@ -8,6 +8,7 @@ import { ShareConfigRepository } from './repositories/share-config.repository';
 import { ShareParticipantRepository } from './repositories/share-participant.repository';
 import { ShareLevelProgressRepository } from './repositories/share-level-progress.repository';
 import { LevelRepository } from '../wechat-game/repositories/level.repository';
+import { pickLevelImageFields } from '../wechat-game/level-fields.helper';
 import { CreateShareDto } from './dto/create-share.dto';
 import { ReportLevelProgressDto } from './dto/report-level-progress.dto';
 import {
@@ -83,7 +84,7 @@ export class ShareService {
       await this.shareParticipantRepository.addParticipant(config.id, userId);
     }
 
-    // 单次查询获取所有关卡，再按 levelIds 顺序排列
+    // Single query, then reorder to match levelIds sequence
     const allLevels = await this.levelRepository.findByIds(config.levelIds);
     const levelMap = new Map(allLevels.map((l) => [l.id, l]));
 
@@ -95,11 +96,8 @@ export class ShareService {
       return {
         id: level.id,
         level: index + 1,
-        imageUrl: level.imageUrl,
+        ...pickLevelImageFields(level),
         answer: level.answer,
-        hint1: level.hint1,
-        hint2: level.hint2,
-        hint3: level.hint3,
         sortOrder: level.sortOrder,
       };
     });