初始：不可命名空数组

shared/db/Role.ts

@@ -627,6 +627,7 @@ export default class Role extends BaseModel {
     }
 
     public static async checkName(roleName: string, serverId: number) {
+        if(!roleName) return true; // 不可起空字符串
         const role: RoleType = await RoleModel.findOne({ roleName, serverId }).lean();
         return !!role;
     }