战力：修复获取属性错误问题

game-server/app/services/playerCeService.ts

@@ -398,7 +398,7 @@ export async function getSumCe(roleId: string, num: number) {
 export async function getHeroesAttributes(roleId: string) {
     let roleCe = await RoleCeModel.findByRoleId(roleId);
     let attrByHid = new Map<number, AttributeCal>();
-    for(let { hid, attrs } of roleCe.attributes||[]) {
+    for(let { hid, attrs } of roleCe?.attributes??[]) {
         let cal = new AttributeCal();
         cal.setLv(roleCe.roleLv);
         cal.setByWarJson(attrs);