weichen
204ca67dc7
Why: The three-column workbench redesign converges entries and hierarchy: project switching tops the left rail (identity shown once), sessions and search stay centered, files/workspaces/account sink to the bottom. The right column becomes a Work/Files third column that absorbs the preview pane, which is no longer an independent fourth region; the artifacts workspace overlay folds into the Files entry, and stop control consolidates into the input area with a light fast/slow-lane status hint. Evidence: make test-frontend NOT_RUN at commit time; the run and its outcome are recorded in the Dev task card before integration. Impact: App.tsx layout and divider width tiers (work 280-560, files with open preview 420-1100); store UI state rightTab work/files plus filesView with syncFilesEntry replacing syncPreviewRail; Workbench dual entry; PreviewPane gains a back-to-list control; TaskSidebar project switcher; TopBar drops project identity; Conversation drops the header stop button and gains the input status line; workspaces.ts drops the artifacts builtin. Refs: three-column workbench proposal (2026-10-11), DESIGN.md 6/9.3 revision follows in the Dev repo.
Agent-System-Frontend
对话系统前端：React 19 + Vite + TypeScript 三栏工作台（项目会话 / 流式对话 / 计划与工件面板），含 HITL 卡片、sub-agent 追踪弹窗与 schema 驱动渲染；渲染协议由 agent-system-core 定义。
契约与架构见 Agent-System-Documents 设计方案与架构文档；开发规范见 development-guidelines（Dev 仓 development/guidelines）。本仓为 Agent-System 多仓组合的组成部分。