后台添加清空账号功能

shared/db/Role.ts

@@ -176,6 +176,11 @@ export default class Role extends BaseModel {
     let role = await RoleModel.findOneAndUpdate({roleId}, {$set: { exp, lv }}, {new: true}).lean(lean);
     return role;
   }
+
+  public static async deleteAccount(roleId: string, lean = true) {
+    let result = await RoleModel.deleteMany({roleId}).lean(lean);
+    return result||{};
+  }
 }
 
 export const RoleModel = getModelForClass(Role);