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

CanonicalUsage decodes the original provider usage carried across relay hops into the shared accounting shape. The BillingUsage snapshot remains the s

FinalResponse validates a plugin-authored complete Responses object and overwrites every host-owned identity and lifecycle field. Unknown protocol fie

GetClaudeSettings 获取Claude配置

GetModelPrice 返回模型的价格，如果模型不存在则返回-1，false

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。

GetUserSessionCached validates cached state first and falls back to the database on a miss or Redis read failure. A deny tombstone never falls back.

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

RechargeEpay 原子完成易支付订单：订单行锁、状态校验、成功更新与用户额度增加 在同一个事务内完成，因此同一订单的并发/重复回调（包括多实例部署下）最多充值一次。 alreadyDone=true 表示订单此前已完成，本次为幂等重复回调。 进程内的 LockOrder 只是优化，正确性由本

RoutingMatchModelName returns the name used for channel-ability and token-limit fallback matching: strip @ modifiers and legacy aliases first, then ap

Snapshot returns a detached top-level view for tests and read-only inspection. Mutating it cannot add or replace fields in LogOther.

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

creditTopUpQuota atomically enforces the wallet ceiling while adding quota. Keeping the predicate and increment in one UPDATE prevents two concurrent