feat: 技术债务清理（支付配置动态化、API文档补全、轮询常量提取、废弃代码清理）

migrations/000116_remove_legacy_commission_fields.up.sql

@@ -0,0 +1,6 @@
+-- 删除 tb_iot_card 和 tb_device 表中的废弃分佣追踪字段
+-- 这两个字段已被 accumulated_recharge_by_series (JSONB) 字段替代
+ALTER TABLE tb_iot_card DROP COLUMN IF EXISTS first_commission_paid;
+ALTER TABLE tb_iot_card DROP COLUMN IF EXISTS accumulated_recharge;
+ALTER TABLE tb_device DROP COLUMN IF EXISTS first_commission_paid;
+ALTER TABLE tb_device DROP COLUMN IF EXISTS accumulated_recharge;