feat(share): 分享挑战关卡进度记录功能

- 新增 Level.timeLimit 字段支持关卡时间限制
- 新增 ShareLevelProgress 实体记录单关通关进度
- 新增 ShareLevelProgressRepository
- 新增 DTO: ReportLevelProgressDto, ReportLevelProgressResponseDto
- 新增 POST /v1/share/progress 接口用于上报进度
- 支持仅首次通关有效判断
- 支持时间限制内通关判断
- 不可变模式更新进度记录
- 数据库迁移脚本

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/modules/share/entities/share-level-progress.entity.ts

@@ -0,0 +1,44 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  ManyToOne,
+  JoinColumn,
+  Index,
+  Unique,
+} from 'typeorm';
+import { ShareParticipant } from './share-participant.entity';
+import { Level } from '../../wechat-game/entities/level.entity';
+
+@Entity('share_level_progress')
+@Unique('uq_participant_level', ['participantId', 'levelId'])
+export class ShareLevelProgress {
+  @PrimaryGeneratedColumn('uuid')
+  id!: string;
+
+  @Index('idx_slp_participant_id')
+  @Column({ type: 'char', length: 36, name: 'participant_id' })
+  participantId!: string;
+
+  @ManyToOne(() => ShareParticipant)
+  @JoinColumn({ name: 'participant_id' })
+  participant!: ShareParticipant;
+
+  @Index('idx_slp_level_id')
+  @Column({ type: 'char', length: 191, name: 'level_id' })
+  levelId!: string;
+
+  @ManyToOne(() => Level)
+  @JoinColumn({ name: 'level_id' })
+  level!: Level;
+
+  @Column({ type: 'tinyint', width: 1, default: 0 })
+  passed!: boolean;
+
+  @Column({ type: 'int', default: 0, name: 'time_spent' })
+  timeSpent!: number;
+
+  @CreateDateColumn({ name: 'completed_at' })
+  completedAt!: Date;
+}