RecalculateTaskQuota 通用的异步差额结算。 actualQuota 是任务完成后的实际应扣额度，与预扣额度 (task.Quota) 做差额结算。 reason 用于日志记录（例如 "token重算" 或 "adaptor调整"）。 clamps 可选：若计算 actualQuo

RefundTaskQuota 统一的任务失败退款逻辑。 当异步任务失败时，将预扣的 quota 退还给用户（支持钱包和订阅），并退还令牌额度。

ResetProxyClientCache 清空代理客户端缓存，确保下次使用时重新初始化

func (info *RelayInfo) SetPromptTokens(promptTokens int) { info.promptTokens = promptTokens }

UpdateWithStatus performs a conditional UPDATE guarded by fromStatus (CAS). Returns (true, nil) if this caller won the update, (false, nil) if another

--------------------------------------------------------------------------- BuildTieredTokenParams: token normalization and ratio parity tests -------

GetResultURL 获取任务结果 URL（视频地址等） 新数据存在 PrivateData.ResultURL 中；旧数据回退到 FailReason（历史兼容）

GetSSRFProtectedHTTPClient 返回带拨号时 SSRF 校验的客户端。 ssrfProtectedHTTPClient 由 InitHttpClient 在启动时初始化，运行期只读。

LoadFromJsonStringWithCallback loads a JSON string into the RWMap and calls the callback on success.

Update subscription used amount by delta (positive consume more, negative refund).

T translates a message key using the language from gin context

attachQuotaSaturation records the request's quota clamp (if any) onto the consume log's other.admin_info and emits a request-correlated backend audit

* Helper function to get effective ratio and label * @param {number} groupRatio - The default group ratio * @param {number} user_group_ratio - The u

setup session & cookies and then return user info

Complete a subscription order (idempotent). Creates a UserSubscription snapshot from the plan. expectedPaymentProvider guards against cross-gateway ca