fix(outbox): 实现指数退避重试策略，最大延迟3小时
修复Outbox事件发布的重试机制:
1. 更新Prisma Schema (mining-service, trading-service):
- 添加OutboxStatus枚举 (PENDING, PUBLISHED, FAILED)
- 添加topic、key、status、retryCount、maxRetries、lastError等字段
- 添加publishedAt、nextRetryAt时间戳
- 优化索引 (status, nextRetryAt, createdAt)
2. 更新OutboxRepository (mining-service, trading-service):
- findPendingEvents(): 查询待处理且到达重试时间的事件
- markAsPublished(): 标记事件已发布
- markAsFailed(): 实现指数退避算法 (30s基础, 最大3小时)
- deletePublished(): 清理已发布的旧事件
3. 更新OutboxScheduler (auth/mining/trading-service):
- 使用指数退避: 30s, 60s, 120s, 240s, ... 最大10800s (3小时)
- 记录重试次数和错误信息
- 达到最大重试次数后标记为FAILED
指数退避公式: delay = min(30s * 2^(retryCount-1), 3h)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
hailin
ee5f841034