refactor: update knowledge document types and API client interfaces

- Refactored types in `Knowledge/types.ts` to introduce new interfaces for document handling.
- Added `KnowledgeDocItem`, `KnowledgeDocsListResponse`, `KnowledgeDocsUploadInput`, `KnowledgeDocsUploadResponse`, and `KnowledgeDocsDeleteResponse` for better structure and clarity.
- Updated `KnowledgeDocsApiClient` interface to include methods for listing, uploading, and deleting documents.

fix: replace deprecated icons in AccountSettingsPanel and SettingMenu

- Replaced `CheckCircleIcon` with `CheckCircle` from `lucide-react` in `AccountSettingsPanel.tsx`.
- Updated `SettingMenu.tsx` to use `Settings` and `User` from `lucide-react` instead of custom icons.

test: add tests for knowledge docs routes and KnowledgePage

- Created `knowledge-docs-routes.test.ts` to test API routes for listing, uploading, and deleting knowledge documents.
- Added `knowledge-page.test.tsx` to test the rendering and functionality of the KnowledgePage component, including document loading and deletion.

docs/prompt-history.md

@@ -14,4 +14,6 @@
 
 - 替我确认真实 UI 操作流和 gateway 行为已经全部跑通。离“完全对齐 ClawX”还差两块更值钱的尾项：真实远端 target discovery，不只是本地候选合成；以及 provider/runtime 变更后的显式前端刷新事件，而不只是主进程侧同步。估算sub-agent数量，安排sub-agent分工推进开发工作，期望完全对齐ClawX。
 
-- 在ClwaX项目中深度分析消息频道功能包括渲染层视觉UI、主进程等实现思路，用于迁移到zn-ai项目，输出迁移开发计划到zn-ai/docs目录下，估算sub-agent数量，安排sub-agent分工分析消息频道功能实现思路，期望迁移功能对齐ClawX。
+- 在ClwaX项目中深度分析消息频道功能包括渲染层视觉UI、主进程等实现思路，用于迁移到zn-ai项目，输出迁移开发计划到zn-ai/docs目录下，估算sub-agent数量，安排sub-agent分工分析消息频道功能实现思路，期望迁移功能对齐ClawX。
+
+- 重构KnowLedge/index.tsx渲染层、主进程，产品需求如下：上传文件按钮，上传到zn-ai/docs目录，文件列表显示内容：文件名称，文件大小、修改日期、文件类型，操作：删除，视觉UI沿用当前的风格。规划重构计划，估算sub-agent数量，安排sub-agent分工推进工作