diff --git a/.claude/settings.local.json b/.claude/settings.local.json
deleted file mode 100644
index dce2649f..00000000
--- a/.claude/settings.local.json
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "mcp__serena__read_file",
-      "mcp__serena__activate_project",
-      "mcp__serena__check_onboarding_performed",
-      "Bash(npm start)",
-      "mcp__serena__search_for_pattern",
-      "mcp__serena__replace_regex",
-      "mcp__serena__list_dir",
-      "mcp__serena__create_text_file",
-      "Bash(rm:*)",
-      "Bash(npm run build:*)",
-      "mcp__serena__execute_shell_command",
-      "Bash(pkill:*)",
-      "Bash(mkdir:*)",
-      "Bash(cp:*)",
-      "Bash(git checkout:*)",
-      "mcp__serena__replace_symbol_body",
-      "mcp__serena__think_about_task_adherence",
-      "mcp__serena__onboarding",
-      "mcp__serena__write_memory",
-      "Bash(lsof:*)",
-      "Bash(PORT=3001 npm start)",
-      "Bash(kill:*)",
-      "Bash(python3:*)",
-      "mcp__serena__find_file",
-      "mcp__serena__think_about_whether_you_are_done",
-      "mcp__serena__read_memory",
-      "Bash(npx tsc:*)",
-      "mcp__serena__get_symbols_overview",
-      "Bash(grep:*)",
-      "Bash(find:*)",
-      "Bash(timeout 10 npm start)",
-      "Bash(npm run dev:*)",
-      "Bash(npm install:*)",
-      "Bash(npm uninstall:*)",
-      "Bash(git init:*)",
-      "Bash(git remote add:*)",
-      "Bash(git add:*)",
-      "Bash(git commit -m \"$(cat <<''EOF''\nfeat: 初始化多Agent协作系统项目并添加直播回放功能\n\n- 添加导航栏组件及直播回放按钮\n- 实现视频播放模态框\n- 配置赛博朋克风格主题\n- 添加课程首页和课程页面\n\n🤖 Generated with [Claude Code](https://claude.com/claude-code)\n\nCo-Authored-By: Claude <noreply@anthropic.com>\nEOF\n)\")"
-    ],
-    "deny": []
-  }
-}
diff --git a/.gitignore b/.gitignore
index 31544ace..10394eb7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,8 @@ lerna-debug.log*
 # Temporary files
 *.tmp
 .cache/
+
+# Yoyo, Serena and Claude
+.yoyo/
+.serena/
+.claude/
diff --git a/.serena/.gitignore b/.serena/.gitignore
deleted file mode 100644
index 14d86ad6..00000000
--- a/.serena/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/cache
diff --git a/.serena/memories/code_style_conventions.md b/.serena/memories/code_style_conventions.md
deleted file mode 100644
index 0fc37410..00000000
--- a/.serena/memories/code_style_conventions.md
+++ /dev/null
@@ -1,60 +0,0 @@
-# 代码风格与约定
-
-## TypeScript风格
-- 使用TypeScript严格模式
-- 接口和类型定义使用PascalCase
-- 变量和函数使用camelCase
-- 常量使用UPPER_SNAKE_CASE
-
-## React约定
-- 组件使用PascalCase命名
-- Props接口以Props结尾 (如: HomePageProps)
-- 使用函数式组件和Hooks
-- 导出组件使用export default
-
-## 文件命名
-- 组件文件: PascalCase.tsx (如: HomePage.tsx)
-- 工具文件: camelCase.ts
-- 样式文件: kebab-case.css
-
-## CSS/Tailwind约定
-- 优先使用Tailwind CSS类
-- 自定义CSS使用CSS变量
-- 颜色变量遵循命名模式: --bg-*, --surf-*, --accent-*
-- 响应式设计: mobile-first
-
-## 项目特定约定
-- 课程相关页面放在 pages/course/ 目录
-- 图片资源放在 src/assets/images/ 
-- 组件props解构使用
-- 动画使用Framer Motion库
-
-## 导入顺序
-1. React相关导入
-2. 第三方库导入  
-3. 本地组件导入
-4. 类型导入
-5. 样式导入
-
-## 组件结构
-```tsx
-import React from 'react';
-import { motion } from 'framer-motion';
-
-interface ComponentProps {
-  // props定义
-}
-
-const Component: React.FC<ComponentProps> = ({ prop1, prop2 }) => {
-  // hooks
-  // 事件处理函数
-  // 渲染逻辑
-  return (
-    <motion.div>
-      {/* JSX */}
-    </motion.div>
-  );
-};
-
-export default Component;
-```
\ No newline at end of file
diff --git a/.serena/memories/project_overview.md b/.serena/memories/project_overview.md
deleted file mode 100644
index 3d41debe..00000000
--- a/.serena/memories/project_overview.md
+++ /dev/null
@@ -1,40 +0,0 @@
-# 项目概述
-
-## 项目目的
-这是一个多Agent协作系统的教学网站项目，原本是PLC教学网站，现已转换为专注于IT运维风格的多Agent系统课程教学平台。
-
-## 技术栈
-- **前端框架**: React 18.2.0 + TypeScript 4.9.5
-- **路由**: React Router DOM 6.20.1 
-- **动画库**: Framer Motion 12.19.2
-- **拖拽库**: @dnd-kit/core 6.3.1, react-beautiful-dnd 13.1.1
-- **样式**: Tailwind CSS 3.3.6 + 自定义CSS
-- **构建工具**: React Scripts 5.0.1
-
-## 项目结构
-- `src/`
-  - `components/` - 可复用组件
-  - `pages/` - 页面组件
-    - `course/` - 课程相关页面
-  - `assets/` - 静态资源
-- `public/` - 公共静态资源
-- `tailwind.config.js` - Tailwind配置
-- `tsconfig.json` - TypeScript配置
-
-## 课程内容
-基于课程讲义.md，包含7大模块：
-1. 多Agent系统基础
-2. Agent角色设计  
-3. Agent间通信机制
-4. 协作与任务管理
-5. 中央协调与管理
-6. 实际应用架构
-7. A2A协议案例讲解
-
-## 设计风格
-- IT运维风格（IT风）
-- 深蓝主色调 (#0f172a)
-- 青色辅助色 (#0891b2) 
-- 绿色强调色 (#10b981)
-- 玻璃拟态效果
-- 流畅动画交互
\ No newline at end of file
diff --git a/.serena/memories/suggested_commands.md b/.serena/memories/suggested_commands.md
deleted file mode 100644
index c6f4ee7a..00000000
--- a/.serena/memories/suggested_commands.md
+++ /dev/null
@@ -1,57 +0,0 @@
-# 建议命令
-
-## 开发相关命令
-
-### 启动开发服务器
-```bash
-npm start
-```
-
-### 构建生产版本
-```bash
-npm run build
-```
-
-### 运行测试
-```bash
-npm run test
-```
-
-### 安装依赖
-```bash
-npm install
-```
-
-## Git操作
-```bash
-git status
-git add .
-git commit -m "提交信息"
-git push
-```
-
-## 文件查看
-```bash
-ls -la                  # 查看目录内容
-find . -name "*.tsx"    # 查找TypeScript文件
-grep -r "搜索内容" src/  # 在src目录搜索内容
-```
-
-## 系统工具 (Darwin)
-```bash
-open .                  # 在Finder中打开当前目录
-which node             # 查看node路径
-ps aux | grep node     # 查看node进程
-kill -9 <PID>          # 结束进程
-```
-
-## 开发工具
-- VS Code: 推荐的IDE
-- Chrome DevTools: 调试工具
-- React DevTools: React调试扩展
-
-## 注意事项
-- 系统为Darwin (macOS)
-- 使用npm作为包管理器
-- TypeScript配置严格模式
-- 支持ES6+语法
\ No newline at end of file
diff --git a/.serena/memories/task_completion_checklist.md b/.serena/memories/task_completion_checklist.md
deleted file mode 100644
index d4ad947f..00000000
--- a/.serena/memories/task_completion_checklist.md
+++ /dev/null
@@ -1,49 +0,0 @@
-# 任务完成检查清单
-
-## 编码任务完成后必须执行
-
-### 1. 代码质量检查
-- [ ] 检查TypeScript类型错误
-- [ ] 确保所有组件正确导入导出
-- [ ] 检查控制台错误和警告
-- [ ] 验证响应式设计在不同设备上的表现
-
-### 2. 功能测试
-- [ ] 测试新功能的基本操作
-- [ ] 验证路由跳转正常
-- [ ] 测试动画效果流畅
-- [ ] 检查交互元素响应性
-
-### 3. 样式检查  
-- [ ] 验证IT运维风格主题一致性
-- [ ] 检查颜色变量使用正确
-- [ ] 确保玻璃拟态效果正常
-- [ ] 验证Tailwind类名正确应用
-
-### 4. 性能检查
-- [ ] 检查页面加载速度
-- [ ] 验证图片资源优化
-- [ ] 确保不存在内存泄漏
-
-### 5. 浏览器兼容性
-- [ ] Chrome测试
-- [ ] Safari测试 (Darwin系统)
-- [ ] 移动端Safari测试
-
-## 课程内容任务特定检查
-
-### 课程页面创建
-- [ ] 页面结构符合课程讲义.md内容
-- [ ] 包含所有必要的学习目标
-- [ ] 交互式元素功能正常
-- [ ] 导航链接正确配置
-
-### 样式更新任务
-- [ ] 色彩搭配符合IT运维风格
-- [ ] 动画缓动效果自然
-- [ ] 响应式布局适配各设备
-
-## 提交前最终检查
-- [ ] 运行 npm start 确保应用启动正常
-- [ ] 快速浏览所有页面确保无明显问题
-- [ ] 检查git状态，确保没有遗漏文件
\ No newline at end of file
diff --git a/.serena/project.yml b/.serena/project.yml
deleted file mode 100644
index 026c0bd2..00000000
--- a/.serena/project.yml
+++ /dev/null
@@ -1,68 +0,0 @@
-# language of the project (csharp, python, rust, java, typescript, go, cpp, or ruby)
-#  * For C, use cpp
-#  * For JavaScript, use typescript
-# Special requirements:
-#  * csharp: Requires the presence of a .sln file in the project folder.
-language: typescript
-
-# whether to use the project's gitignore file to ignore files
-# Added on 2025-04-07
-ignore_all_files_in_gitignore: true
-# list of additional paths to ignore
-# same syntax as gitignore, so you can use * and **
-# Was previously called `ignored_dirs`, please update your config if you are using that.
-# Added (renamed)on 2025-04-07
-ignored_paths: []
-
-# whether the project is in read-only mode
-# If set to true, all editing tools will be disabled and attempts to use them will result in an error
-# Added on 2025-04-18
-read_only: false
-
-
-# list of tool names to exclude. We recommend not excluding any tools, see the readme for more details.
-# Below is the complete list of tools for convenience.
-# To make sure you have the latest list of tools, and to view their descriptions, 
-# execute `uv run scripts/print_tool_overview.py`.
-#
-#  * `activate_project`: Activates a project by name.
-#  * `check_onboarding_performed`: Checks whether project onboarding was already performed.
-#  * `create_text_file`: Creates/overwrites a file in the project directory.
-#  * `delete_lines`: Deletes a range of lines within a file.
-#  * `delete_memory`: Deletes a memory from Serena's project-specific memory store.
-#  * `execute_shell_command`: Executes a shell command.
-#  * `find_referencing_code_snippets`: Finds code snippets in which the symbol at the given location is referenced.
-#  * `find_referencing_symbols`: Finds symbols that reference the symbol at the given location (optionally filtered by type).
-#  * `find_symbol`: Performs a global (or local) search for symbols with/containing a given name/substring (optionally filtered by type).
-#  * `get_current_config`: Prints the current configuration of the agent, including the active and available projects, tools, contexts, and modes.
-#  * `get_symbols_overview`: Gets an overview of the top-level symbols defined in a given file or directory.
-#  * `initial_instructions`: Gets the initial instructions for the current project.
-#     Should only be used in settings where the system prompt cannot be set,
-#     e.g. in clients you have no control over, like Claude Desktop.
-#  * `insert_after_symbol`: Inserts content after the end of the definition of a given symbol.
-#  * `insert_at_line`: Inserts content at a given line in a file.
-#  * `insert_before_symbol`: Inserts content before the beginning of the definition of a given symbol.
-#  * `list_dir`: Lists files and directories in the given directory (optionally with recursion).
-#  * `list_memories`: Lists memories in Serena's project-specific memory store.
-#  * `onboarding`: Performs onboarding (identifying the project structure and essential tasks, e.g. for testing or building).
-#  * `prepare_for_new_conversation`: Provides instructions for preparing for a new conversation (in order to continue with the necessary context).
-#  * `read_file`: Reads a file within the project directory.
-#  * `read_memory`: Reads the memory with the given name from Serena's project-specific memory store.
-#  * `remove_project`: Removes a project from the Serena configuration.
-#  * `replace_lines`: Replaces a range of lines within a file with new content.
-#  * `replace_symbol_body`: Replaces the full definition of a symbol.
-#  * `restart_language_server`: Restarts the language server, may be necessary when edits not through Serena happen.
-#  * `search_for_pattern`: Performs a search for a pattern in the project.
-#  * `summarize_changes`: Provides instructions for summarizing the changes made to the codebase.
-#  * `switch_modes`: Activates modes by providing a list of their names
-#  * `think_about_collected_information`: Thinking tool for pondering the completeness of collected information.
-#  * `think_about_task_adherence`: Thinking tool for determining whether the agent is still on track with the current task.
-#  * `think_about_whether_you_are_done`: Thinking tool for determining whether the task is truly completed.
-#  * `write_memory`: Writes a named memory (for future reference) to Serena's project-specific memory store.
-excluded_tools: []
-
-# initial prompt for the project. It will always be given to the LLM upon activating the project
-# (contrary to the memories, which are loaded on demand).
-initial_prompt: ""
-
-project_name: "education_web_外贸业务的核心流程及关键角色"
diff --git a/.yoyo/db/snapshot_embeddings.sqlitejs b/.yoyo/db/snapshot_embeddings.sqlitejs
deleted file mode 100644
index 823d6e5e..00000000
Binary files a/.yoyo/db/snapshot_embeddings.sqlitejs and /dev/null differ
diff --git a/.yoyo/snapshot b/.yoyo/snapshot
deleted file mode 160000
index 2a7cdd63..00000000
--- a/.yoyo/snapshot
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 2a7cdd63674a0ed66e8bfaebe9c5b565f9e5d166