简化开放下单幂等参数

backend/internal/router/router.go

@@ -36,7 +36,7 @@ func Setup(h *Handlers) *gin.Engine {
 	r.Use(cors.New(cors.Config{
 		AllowOrigins:     []string{"*"},
 		AllowMethods:     []string{"GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"},
-		AllowHeaders:     []string{"Origin", "Content-Type", "Authorization", "X-Merchant-ID", "X-App-Key", "X-Api-Key", "X-Timestamp", "X-Nonce", "X-Sign", "Idempotency-Key", "X-Request-ID"},
+		AllowHeaders:     []string{"Origin", "Content-Type", "Authorization", "X-Merchant-ID", "X-App-Key", "X-Api-Key", "X-Timestamp", "X-Nonce", "X-Sign", "X-Request-ID"},
 		ExposeHeaders:    []string{"Content-Length", "X-Request-ID"},
 		AllowCredentials: true,
 	}))