- 删 CheckTenantBalance/DeductBalance/GetTenantSurplus(admin-go 租户余额退出 model-gateway) - 新增 pricing_client.go:门禁 config/get + calcModelCost 调 shop-user-trade /calc 算费 - sync/stream/async 三处 Cost 改为按用量调 /calc(媒体类型映射 text/audio/video/image) - 删 price.go 本地 PriceConfig 换算体系与 entity/dto 的 price_config 字段 Co-Authored-By: Claude <noreply@anthropic.com>