完善退款审批材料与恢复流程

internal/routes/refund.go

@@ -70,6 +70,10 @@ func registerRefundRoutes(router fiber.Router, handler *admin.RefundHandler, doc
 		Auth:    true,
 	})
 
+	Register(refund, doc, groupPath, "POST", "/:id/recover-approval", handler.RecoverApproval, RouteSpec{
+		Summary: "恢复退款原审批提交", Description: "仅恢复最新退款审批实例的原提交事件，不创建新审批实例，不直接调用企业微信接口；审批提交结果未知时必须先由恢复任务确认。", Tags: []string{"退款管理"}, Input: new(dto.RefundIDRequest), Output: new(dto.RefundResponse), Auth: true,
+	})
+
 	Register(refund, doc, groupPath, "POST", "/:id/approve", handler.Approve, RouteSpec{
 		Summary: "审批通过退款申请",
 		Tags:    []string{"退款管理"},