feat(billing): 统一计价与候选冻结估算

新增 effective-pricing-v2、9 位十进制定点计算、显式免费校验和结构化缺价错误。估价与生产预处理覆盖全部可用候选，并按最大候选费用冻结；规则优先级为平台模型、平台、基准模型。\n\n同步计价契约和 OpenAPI，补充 Token 参数别名、视频五秒向上取整及缺价回归测试。\n\n验证：go test ./...、pnpm openapi、Web 测试与构建通过。
2026-07-20 23:22:45 +08:00
parent 01a013c809
commit 5114686c35
14 changed files with 1192 additions and 28 deletions
@@ -188,8 +188,14 @@ type PricingEstimateRequest struct {
 }

 type PricingEstimateResponse struct {
-	Items    []map[string]interface{} `json:"items"`
-	Resolver string                   `json:"resolver" example:"effective-pricing-v1"`
+	Items              []map[string]interface{} `json:"items"`
+	Resolver           string                   `json:"resolver" example:"effective-pricing-v2"`
+	TotalAmount        float64                  `json:"totalAmount" example:"1.25"`
+	ReservationAmount  float64                  `json:"reservationAmount" example:"2.75"`
+	Currency           string                   `json:"currency" example:"resource"`
+	CandidateCount     int                      `json:"candidateCount" example:"2"`
+	PricingVersion     string                   `json:"pricingVersion" example:"effective-pricing-v2"`
+	RequestFingerprint string                   `json:"requestFingerprint" example:"76ef6a537de8e71bd1ca93acadc078dbdbfa9f17e45224e4f9df59f535d2886f"`
 }

 type TaskRequest struct {