fix: 修复轮询系统缓存不一致和可观测性问题

- OnCardStatusChanged/Enabled/Disabled 添加 InvalidateCardCache，
  解决 Refresh API 更新 DB 后 polling 缓存仍为旧值的 bug
- AssetResolveResponse 的 enable_polling/network_status 去掉
  omitempty，解决 false/0 时字段从响应中消失的问题
- Scheduler/Initializer/PackageHandler 增加 INFO 级别日志，
  可通过日志判断轮询是否工作、处理了哪些卡

internal/polling/initializer.go

@@ -199,6 +199,8 @@ func (p *PollingInitializer) initBatch(ctx context.Context, cards []*model.IotCa
 	cardCacheTTL := 7 * 24 * time.Hour
 	pipe := p.redis.Pipeline()
 	cmdCount := 0
+	enqueuedCards := 0
+	skippedCards := 0
 
 	flushPipe := func() {
 		if cmdCount == 0 {
@@ -214,8 +216,10 @@ func (p *PollingInitializer) initBatch(ctx context.Context, cards []*model.IotCa
 	for _, card := range cards {
 		cfg := p.configMgr.MatchConfig(card)
 		if cfg == nil {
+			skippedCards++
 			continue
 		}
+		enqueuedCards++
 
 		shardID := int(card.ID) % p.queueMgr.shardCount
 		cardIDStr := fmt.Sprintf("%d", card.ID)
@@ -273,6 +277,10 @@ func (p *PollingInitializer) initBatch(ctx context.Context, cards []*model.IotCa
 	}
 
 	flushPipe()
+	p.logger.Info("批量初始化完成",
+		zap.Int("total", len(cards)),
+		zap.Int("enqueued", enqueuedCards),
+		zap.Int("skipped_no_config", skippedCards))
 	return nil
 }
 

internal/polling/lifecycle_service.go

@@ -63,11 +63,14 @@ func (s *PollingLifecycleService) OnBatchCardsCreated(ctx context.Context, cards
 	}
 }
 
-// OnCardStatusChanged 卡状态变化后重新匹配配置并更新队列
+// OnCardStatusChanged 卡状态变化后清理缓存、重新匹配配置并更新队列
 func (s *PollingLifecycleService) OnCardStatusChanged(ctx context.Context, cardID uint) {
 	if err := s.queueMgr.RemoveFromAllQueues(ctx, cardID); err != nil {
 		s.logger.Warn("卡状态变化：从队列移除失败", zap.Uint("card_id", cardID), zap.Error(err))
 	}
+	// 清理轮询卡缓存，确保下次轮询从 DB 读取最新状态
+	s.queueMgr.InvalidateCardCache(ctx, cardID)
+
 	card, err := s.iotCardStore.GetByID(ctx, cardID)
 	if err != nil {
 		s.logger.Error("卡状态变化：加载卡信息失败", zap.Uint("card_id", cardID), zap.Error(err))
@@ -88,6 +91,7 @@ func (s *PollingLifecycleService) OnCardDeleted(ctx context.Context, cardID uint
 
 // OnCardEnabled 卡启用轮询后初始化
 func (s *PollingLifecycleService) OnCardEnabled(ctx context.Context, cardID uint) {
+	s.queueMgr.InvalidateCardCache(ctx, cardID)
 	card, err := s.iotCardStore.GetByID(ctx, cardID)
 	if err != nil {
 		s.logger.Error("卡启用：加载卡信息失败", zap.Uint("card_id", cardID), zap.Error(err))
@@ -104,6 +108,7 @@ func (s *PollingLifecycleService) OnCardDisabled(ctx context.Context, cardID uin
 	if err := s.queueMgr.RemoveFromAllQueues(ctx, cardID); err != nil {
 		s.logger.Warn("卡禁用：从队列移除失败", zap.Uint("card_id", cardID), zap.Error(err))
 	}
+	s.queueMgr.InvalidateCardCache(ctx, cardID)
 }
 
 // shouldEnqueue M3 修复：检查卡或其绑定设备是否允许轮询

internal/polling/queue_manager.go

@@ -129,6 +129,14 @@ func (m *PollingQueueManager) OnCardDeleted(ctx context.Context, cardID uint) er
 	return m.redis.Del(ctx, cacheKey).Err()
 }
 
+// InvalidateCardCache 清理轮询卡信息缓存，强制下次轮询从 DB 重建
+func (m *PollingQueueManager) InvalidateCardCache(ctx context.Context, cardID uint) {
+	cacheKey := constants.RedisPollingCardInfoKey(cardID)
+	if err := m.redis.Del(ctx, cacheKey).Err(); err != nil {
+		m.logger.Warn("清理轮询卡缓存失败", zap.Uint("card_id", cardID), zap.Error(err))
+	}
+}
+
 // GetQueueDepth 获取分片队列深度（用于背压检测）
 func (m *PollingQueueManager) GetQueueDepth(ctx context.Context, shardID int, taskType string) (int64, error) {
 	key := constants.RedisPollingShardQueueKey(shardID, taskType)

internal/polling/scheduler.go

@@ -186,6 +186,9 @@ func (s *Scheduler) processOneShard(ctx context.Context, shardID int) {
 			for i, e := range entries {
 				cardIDs[i] = formatUint(e.CardID)
 			}
+			s.logger.Info("分片出队",
+				zap.Int("shard_id", shardID), zap.String("task_type", taskType),
+				zap.Int("count", len(entries)))
 			s.enqueueBatch(ctx, taskType, cardIDs)
 		}
 	}