功能：恢复商户账号分组查看

backend/internal/router/router.go

@@ -193,6 +193,7 @@ func Setup(h *Handlers) *gin.Engine {
 			admin.Use(middleware.RequireRole(model.RoleAdmin))
 			{
 				admin.GET("/platform/admins", h.User.ListPlatformAdmins)
+				admin.GET("/platform/merchant-accounts", h.User.ListMerchantAccountGroups)
 				admin.POST("/platform/admins", h.User.CreatePlatformAdmin)
 				admin.PATCH("/platform/admins/:id", h.User.UpdatePlatformAdmin)
 				admin.DELETE("/platform/admins/:id", h.User.DeletePlatformAdmin)