fix: 移除 standaloneListColumns 中已废弃的分佣字段

迁移 000116 已从 tb_iot_card 删除 first_commission_paid 和 accumulated_recharge
两列，但 standaloneListColumns 未同步清理，导致 SELECT 查询报列不存在错误。

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

internal/store/postgres/iot_card_store.go

@@ -229,7 +229,7 @@ var standaloneListColumns = []string{
 	"activation_status", "real_name_status", "network_status", "data_usage_mb",
 	"current_month_usage_mb", "current_month_start_date", "last_month_total_mb",
 	"last_data_check_at", "last_real_name_check_at", "enable_polling", "series_id",
-	"first_commission_paid", "accumulated_recharge", "created_at", "updated_at",
+	"created_at", "updated_at",
 }
 
 // ListStandalone 独立卡列表查询入口