- 数据层:messages 表增加 part_type 字段,新建 file_versions 表支持版本追踪 - 后端:saveWorkspace 版本追踪、saveAgentOutput 源头分离、generateBriefMessage 成员简报 - 后端:applyDocumentEdit 增量编辑、buildWorkflowStep phase-aware 工作流引擎 - API:文件版本查询/回退接口 - 前端:part_type 驱动渲染,产物面板版本历史 - 新增写手团队(主编/搜索员/策划编辑/合规审查员)配置 - store 模块、scheduler 模块、web-search skill Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
has-symbols 
Determine if the JS environment has Symbol support. Supports spec, or shams.
Example
var hasSymbols = require('has-symbols');
hasSymbols() === true; // if the environment has native Symbol support. Not polyfillable, not forgeable.
var hasSymbolsKinda = require('has-symbols/shams');
hasSymbolsKinda() === true; // if the environment has a Symbol sham that mostly follows the spec.
Supported Symbol shams
Tests
Simply clone the repo, npm install, and run npm test
