feat(modeSelector): 添加模式选择器组件并集成到输入区域

- 新增上下文按钮组件及其 HTML 内容、样式和脚本代码
- 在输入区域中集成上下文按钮组件，替换原内联代码
- 将上下文按钮样式从输入区域样式中移除并统一管理
- 将上下文按钮事件处理函数移入独立脚本并集成至输入区域脚本
- 保持输入区域功能完整性，简化代码结构，提高可维护性

.vscode/settings.json

@@ -9,5 +9,7 @@
 		"dist": true // set this to false to include "dist" folder in search results
 	},
 	// Turn off tsc task auto detection since we have the necessary tasks as npm scripts
-	"typescript.tsc.autoDetect": "off"
+	"typescript.tsc.autoDetect": "off",
+	// IC Coder 后端服务地址
+	"icCoder.backendUrl": "http://192.168.1.108:2233"
 }

docs/会话存储技术文档.md

@@ -0,0 +1,751 @@
+# IC Coder 会话存储技术文档
+
+## 1. 概述
+
+IC Coder 的会话存储系统负责持久化保存用户与 AI 的对话历史，支持多项目、多任务的会话管理。系统采用文件系统存储方案，将会话数据按项目和任务组织，便于管理和检索。
+
+### 1.1 核心特性
+
+- **多项目支持**：不同项目的会话数据独立存储
+- **任务级管理**：每个会话作为独立任务进行管理
+- **分页加载**：支持历史会话的分页查询，提升性能
+- **实时更新**：会话数据实时保存，防止数据丢失
+- **统计信息**：记录 Token 使用量、对话轮次等统计数据
+
+### 1.2 技术栈
+
+- **存储方式**：文件系统（JSON/JSONL 格式）
+- **存储位置**：`~/.iccoder/projects/{项目路径编码}/{taskId}/`
+- **数据格式**：
+  - `meta.json`：任务元数据
+  - `conversation.json`：完整对话历史
+  - `conversation_meta.jsonl`：对话轮次元数据（JSONL 格式）
+
+---
+
+## 2. 架构设计
+
+### 2.1 目录结构
+
+```
+~/.iccoder/
+└── projects/
+    └── {项目路径编码}/
+        └── {taskId}/
+            ├── meta.json              # 任务元数据
+            ├── conversation.json      # 对话历史
+            └── conversation_meta.jsonl # 对话元数据
+```
+
+**项目路径编码规则**：
+- 移除冒号 `:`
+- 将斜杠 `/` 和反斜杠 `\` 替换为 `--`
+- 示例：`C:\Users\admin\Documents\Project` → `C--Users--admin--Documents--Project`
+
+**任务 ID 格式**：
+- 格式：`task_{date}_{sequence}`
+- 示例：`task_20231226_a3f9k2`
+- `date`：8 位日期（YYYYMMDD）
+- `sequence`：6 位随机字符串
+
+### 2.2 核心类：ChatHistoryManager
+
+`ChatHistoryManager` 是会话存储的核心管理类，采用单例模式设计。
+
+**主要职责**：
+1. 管理会话存储目录
+2. 创建和切换任务
+3. 保存和加载对话历史
+4. 记录统计信息
+5. 提供会话历史查询接口
+
+**关键属性**：
+```typescript
+private static instance: ChatHistoryManager;
+private baseDir: string;                    // ~/.iccoder
+private currentTaskId: string | null;       // 当前任务 ID
+private currentProjectPath: string | null;  // 当前项目路径
+```
+
+---
+
+## 3. 数据模型
+
+### 3.1 TaskMeta（任务元数据）
+
+存储在 `meta.json` 文件中，记录任务的基本信息和统计数据。
+
+```typescript
+interface TaskMeta {
+  taskId: string;           // 任务 ID
+  taskName: string;         // 任务名称
+  projectPath: string;      // 项目路径
+  createdAt: string;        // 创建时间（ISO 8601）
+  updatedAt: string;        // 更新时间（ISO 8601）
+  stats: {
+    credits: number;        // 消耗的积分
+    totalTokens: number;    // 总 Token 数
+    inputTokens: number;    // 输入 Token 数
+    outputTokens: number;   // 输出 Token 数
+  };
+}
+```
+
+**示例**：
+```json
+{
+  "taskId": "task_20231226_a3f9k2",
+  "taskName": "实现计数器功能",
+  "projectPath": "C:\\Users\\admin\\Documents\\Project",
+  "createdAt": "2023-12-26T10:30:00.000Z",
+  "updatedAt": "2023-12-26T11:45:00.000Z",
+  "stats": {
+    "credits": 0,
+    "totalTokens": 15420,
+    "inputTokens": 8200,
+    "outputTokens": 7220
+  }
+}
+```
+
+### 3.2 ChatMessage（对话消息）
+
+存储在 `conversation.json` 文件中，记录完整的对话历史。
+
+**消息类型枚举**：
+```typescript
+enum MessageType {
+  USER = "USER",                           // 用户消息
+  AI = "AI",                               // AI 消息
+  SYSTEM = "SYSTEM",                       // 系统消息
+  TOOL_EXECUTION_RESULT = "TOOL_EXECUTION_RESULT"  // 工具执行结果
+}
+```
+
+**用户消息**：
+```typescript
+interface UserMessage {
+  type: MessageType.USER;
+  contents: Array<{
+    type: "TEXT";
+    text: string;
+  }>;
+}
+```
+
+**AI 消息**：
+```typescript
+interface AiMessage {
+  type: MessageType.AI;
+  text: string;
+  toolExecutionRequests?: Array<{
+    id: string;
+    toolName: string;
+    parameters: any;
+  }>;
+}
+```
+
+**系统消息**：
+```typescript
+interface SystemMessage {
+  type: MessageType.SYSTEM;
+  text: string;
+}
+```
+
+**工具执行结果消息**：
+```typescript
+interface ToolExecutionResultMessage {
+  type: MessageType.TOOL_EXECUTION_RESULT;
+  id: string;
+  toolName: string;
+  text: string;
+}
+```
+
+### 3.3 ConversationMeta（对话轮次元数据）
+
+存储在 `conversation_meta.jsonl` 文件中，每行一条记录（JSONL 格式）。
+
+```typescript
+interface ConversationMeta {
+  turnId: number;           // 对话轮次 ID
+  timestamp: string;        // 时间戳（ISO 8601）
+  usage?: {
+    inputTokens?: number;
+    outputTokens?: number;
+    totalTokens?: number;
+  };
+  model?: string;           // 使用的模型
+  duration?: number;        // 耗时（毫秒）
+}
+```
+
+**示例**：
+```jsonl
+{"turnId":1,"timestamp":"2023-12-26T10:30:15.000Z","usage":{"inputTokens":120,"outputTokens":350,"totalTokens":470},"model":"gpt-4","duration":2500}
+{"turnId":2,"timestamp":"2023-12-26T10:32:30.000Z","usage":{"inputTokens":200,"outputTokens":450,"totalTokens":650},"model":"gpt-4","duration":3200}
+```
+
+---
+
+## 4. 核心功能实现
+
+### 4.1 任务创建
+
+**方法**：`createTask(projectPath: string, taskName: string): Promise<TaskMeta>`
+
+**流程**：
+1. 生成唯一的任务 ID
+2. 创建任务元数据对象
+3. 创建任务目录
+4. 保存 `meta.json`
+5. 初始化空的 `conversation.json`
+6. 设置为当前任务
+
+**代码位置**：`chatHistoryManager.ts:114-146`
+
+```typescript
+public async createTask(projectPath: string, taskName: string): Promise<TaskMeta> {
+  const taskId = this.generateTaskId();
+  const now = new Date().toISOString();
+
+  const meta: TaskMeta = {
+    taskId,
+    taskName,
+    projectPath,
+    createdAt: now,
+    updatedAt: now,
+    stats: {
+      credits: 0,
+      totalTokens: 0,
+      inputTokens: 0,
+      outputTokens: 0
+    }
+  };
+
+  this.currentTaskId = taskId;
+  this.currentProjectPath = projectPath;
+
+  // 创建任务目录
+  const taskDir = this.getTaskDir(projectPath, taskId);
+  await this.ensureTaskDir(taskDir);
+
+  // 保存 meta.json
+  await this.saveTaskMeta(meta);
+
+  // 初始化空的 conversation.json
+  await this.saveConversation([]);
+
+  return meta;
+}
+```
+
+### 4.2 消息保存
+
+系统提供了四种消息保存方法：
+
+#### 4.2.1 添加用户消息
+
+**方法**：`addUserMessage(text: string): Promise<void>`
+
+**代码位置**：`chatHistoryManager.ts:285-299`
+
+```typescript
+public async addUserMessage(text: string): Promise<void> {
+  await this.ensureCurrentTask();
+  const messages = await this.loadConversation();
+
+  const userMessage: UserMessage = {
+    type: MessageType.USER,
+    contents: [{ type: "TEXT", text }]
+  };
+
+  messages.push(userMessage);
+  await this.saveConversation(messages);
+
+  // 更新任务元数据
+  await this.updateTaskTimestamp();
+}
+```
+
+#### 4.2.2 添加 AI 消息
+
+**方法**：`addAiMessage(text: string, toolRequests?: any[]): Promise<void>`
+
+**代码位置**：`chatHistoryManager.ts:304-319`
+
+#### 4.2.3 添加系统消息
+
+**方法**：`addSystemMessage(text: string): Promise<void>`
+
+**代码位置**：`chatHistoryManager.ts:324-335`
+
+#### 4.2.4 添加工具执行结果
+
+**方法**：`addToolExecutionResult(id: string, toolName: string, result: string): Promise<void>`
+
+**代码位置**：`chatHistoryManager.ts:340-353`
+
+### 4.3 对话元数据记录
+
+**方法**：`recordTurnMeta(turnId, usage?, model?, duration?): Promise<void>`
+
+**功能**：记录每轮对话的元数据，包括 Token 使用量、模型信息、耗时等。
+
+**代码位置**：`chatHistoryManager.ts:358-378`
+
+```typescript
+public async recordTurnMeta(
+  turnId: number,
+  usage?: { inputTokens?: number; outputTokens?: number; totalTokens?: number },
+  model?: string,
+  duration?: number
+): Promise<void> {
+  const meta: ConversationMeta = {
+    turnId,
+    timestamp: new Date().toISOString(),
+    usage,
+    model,
+    duration
+  };
+
+  await this.appendConversationMeta(meta);
+
+  // 更新任务统计
+  if (usage) {
+    await this.updateTaskStats(usage);
+  }
+}
+```
+
+### 4.4 会话历史查询
+
+**方法**：`getConversationHistoryList(projectPath, offset, limit): Promise<{items, total, hasMore}>`
+
+**功能**：分页查询项目的会话历史列表。
+
+**参数**：
+- `projectPath`：项目路径
+- `offset`：偏移量（从第几条开始，默认 0）
+- `limit`：每页数量（默认 10）
+
+**返回值**：
+```typescript
+{
+  items: Array<{
+    id: string;        // 任务 ID
+    title: string;     // 会话标题（第一句用户消息）
+    timestamp: string; // 创建时间
+  }>;
+  total: number;       // 总数
+  hasMore: boolean;    // 是否还有更多
+}
+```
+
+**代码位置**：`chatHistoryManager.ts:525-590`
+
+**实现逻辑**：
+1. 获取项目的所有任务列表（按更新时间倒序）
+2. 根据 offset 和 limit 进行分页
+3. 读取每个任务的 `conversation.json`
+4. 提取第一条用户消息作为标题（截取前 50 个字符）
+5. 返回分页结果
+
+---
+
+## 5. 前端集成
+
+### 5.1 会话历史栏组件
+
+**文件**：`conversationHistoryBar.ts`
+
+**组件结构**：
+- 下拉按钮：显示 "Past Conversations"
+- 下拉菜单：显示会话历史列表
+- 新建按钮：创建新会话
+
+**关键功能**：
+
+#### 5.1.1 加载会话历史
+
+```javascript
+function loadMoreHistory() {
+  if (isLoadingHistory || (currentOffset > 0 && !hasMoreHistory)) {
+    return;
+  }
+
+  // 检查是否已达到最大数量（100 条）
+  if (currentOffset >= MAX_HISTORY_ITEMS) {
+    return;
+  }
+
+  isLoadingHistory = true;
+  vscode.postMessage({
+    command: 'loadConversationHistory',
+    offset: currentOffset,
+    limit: HISTORY_PAGE_SIZE
+  });
+}
+```
+
+#### 5.1.2 渲染会话列表
+
+```javascript
+function renderConversationHistory(data) {
+  isLoadingHistory = false;
+
+  // 追加新数据
+  conversationHistory = conversationHistory.concat(data.items);
+  totalHistory = data.total;
+  hasMoreHistory = data.hasMore;
+  currentOffset += data.items.length;
+
+  // 渲染所有历史记录
+  historyList.innerHTML = conversationHistory.map(item => `
+    <div class="history-item" onclick="selectConversation('${item.id}')">
+      <div class="history-item-title">${item.title || '未命名会话'}</div>
+      <div class="history-item-time">${formatTime(item.timestamp)}</div>
+    </div>
+  `).join('');
+
+  // 如果还有更多数据，添加"加载更多"提示
+  if (hasMoreHistory && currentOffset < MAX_HISTORY_ITEMS) {
+    historyList.innerHTML += `
+      <div class="history-load-more">
+        <span>滚动加载更多...</span>
+      </div>
+    `;
+  }
+}
+```
+
+#### 5.1.3 滚动加载
+
+```javascript
+historyDropdownMenu.addEventListener('scroll', () => {
+  const menu = historyDropdownMenu;
+  const scrollTop = menu.scrollTop;
+  const scrollHeight = menu.scrollHeight;
+  const clientHeight = menu.clientHeight;
+
+  // 当滚动到距离底部 50px 时，加载更多
+  if (scrollHeight - scrollTop - clientHeight < 50) {
+    loadMoreHistory();
+  }
+});
+```
+
+#### 5.1.4 时间格式化
+
+```javascript
+function formatTime(timestamp) {
+  const date = new Date(timestamp);
+  const now = new Date();
+  const diff = now - date;
+
+  if (diff < 60000) return '刚刚';
+  if (diff < 3600000) return Math.floor(diff / 60000) + '分钟前';
+  if (diff < 86400000) return Math.floor(diff / 3600000) + '小时前';
+  if (diff < 604800000) return Math.floor(diff / 86400000) + '天前';
+
+  // 超过7天显示具体日期
+  return date.toLocaleDateString('zh-CN', {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit'
+  });
+}
+```
+
+### 5.2 后端消息处理
+
+**文件**：`ICHelperPanel.ts`
+
+**消息处理流程**：
+
+```typescript
+case "loadConversationHistory":
+  // 加载会话历史（支持分页）
+  loadConversationHistory(panel, message.offset || 0, message.limit || 10);
+  break;
+
+case "selectConversation":
+  // 选择会话（暂未实现）
+  break;
+
+case "createNewConversation":
+  // 创建新会话 - 在当前编辑器组中打开新标签页
+  showICHelperPanel(context, panel.viewColumn);
+  break;
+```
+
+**加载会话历史实现**：
+
+```typescript
+async function loadConversationHistory(
+  panel: vscode.WebviewPanel,
+  offset: number = 0,
+  limit: number = 10
+) {
+  try {
+    const historyManager = ChatHistoryManager.getInstance();
+    const workspacePath = vscode.workspace.workspaceFolders?.[0]?.uri.fsPath;
+
+    if (!workspacePath) {
+      // 没有打开的工作区，返回空历史
+      panel.webview.postMessage({
+        command: "conversationHistory",
+        items: [],
+        total: 0,
+        hasMore: false,
+      });
+      return;
+    }
+
+    // 获取会话历史列表（支持分页）
+    const result = await historyManager.getConversationHistoryList(
+      workspacePath,
+      offset,
+      limit
+    );
+
+    // 发送会话历史到前端
+    panel.webview.postMessage({
+      command: "conversationHistory",
+      items: result.items,
+      total: result.total,
+      hasMore: result.hasMore,
+    });
+  } catch (error) {
+    console.error("加载会话历史失败:", error);
+    // 发生错误时返回空历史
+    panel.webview.postMessage({
+      command: "conversationHistory",
+      items: [],
+      total: 0,
+      hasMore: false,
+    });
+  }
+}
+```
+
+---
+
+## 6. 使用示例
+
+### 6.1 创建新任务并保存对话
+
+```typescript
+const historyManager = ChatHistoryManager.getInstance();
+
+// 创建新任务
+const task = await historyManager.createTask(
+  'C:\\Users\\admin\\Documents\\Project',
+  '实现计数器功能'
+);
+
+// 添加用户消息
+await historyManager.addUserMessage('请帮我生成一个4位计数器');
+
+// 添加 AI 消息
+await historyManager.addAiMessage(
+  '好的，我来帮你生成一个4位计数器...',
+  [{ id: '1', toolName: 'generateCode', parameters: {} }]
+);
+
+// 添加工具执行结果
+await historyManager.addToolExecutionResult(
+  '1',
+  'generateCode',
+  '代码生成成功'
+);
+
+// 记录对话元数据
+await historyManager.recordTurnMeta(
+  1,
+  { inputTokens: 120, outputTokens: 350, totalTokens: 470 },
+  'gpt-4',
+  2500
+);
+```
+
+### 6.2 查询会话历史
+
+```typescript
+const historyManager = ChatHistoryManager.getInstance();
+
+// 获取第一页（前10条）
+const page1 = await historyManager.getConversationHistoryList(
+  'C:\\Users\\admin\\Documents\\Project',
+  0,
+  10
+);
+
+console.log('总数:', page1.total);
+console.log('是否还有更多:', page1.hasMore);
+console.log('会话列表:', page1.items);
+
+// 获取第二页（第11-20条）
+const page2 = await historyManager.getConversationHistoryList(
+  'C:\\Users\\admin\\Documents\\Project',
+  10,
+  10
+);
+```
+
+### 6.3 切换任务
+
+```typescript
+const historyManager = ChatHistoryManager.getInstance();
+
+// 切换到指定任务
+const success = await historyManager.switchTask(
+  'C:\\Users\\admin\\Documents\\Project',
+  'task_20231226_a3f9k2'
+);
+
+if (success) {
+  // 获取当前任务会话
+  const session = await historyManager.getCurrentTaskSession();
+  console.log('任务元数据:', session.meta);
+  console.log('对话历史:', session.messages);
+  console.log('对话元数据:', session.conversationMeta);
+}
+```
+
+---
+
+## 7. 性能优化
+
+### 7.1 分页加载
+
+- 前端默认每页加载 10 条记录
+- 最多显示 100 条历史记录
+- 滚动到底部时自动加载下一页
+
+### 7.2 懒加载
+
+- 只在打开下拉菜单时才加载会话历史
+- 避免不必要的文件读取操作
+
+### 7.3 缓存机制
+
+- 前端缓存已加载的会话列表
+- 避免重复请求相同数据
+
+### 7.4 文件格式优化
+
+- 使用 JSONL 格式存储对话元数据，支持追加写入
+- 避免频繁读写整个文件
+
+---
+
+## 8. 错误处理
+
+### 8.1 目录不存在
+
+系统会自动创建不存在的目录：
+
+```typescript
+private async ensureTaskDir(taskDir: string): Promise<void> {
+  try {
+    const uri = vscode.Uri.file(taskDir);
+    try {
+      await vscode.workspace.fs.stat(uri);
+    } catch {
+      // 目录不存在，创建它
+      await vscode.workspace.fs.createDirectory(uri);
+      console.log(`创建任务目录: ${taskDir}`);
+    }
+  } catch (error) {
+    console.error("创建任务目录失败:", error);
+    throw error;
+  }
+}
+```
+
+### 8.2 文件读取失败
+
+读取失败时返回默认值：
+
+```typescript
+private async loadConversation(): Promise<ChatMessage[]> {
+  try {
+    const uri = vscode.Uri.file(conversationPath);
+    const content = await vscode.workspace.fs.readFile(uri);
+    const data = Buffer.from(content).toString('utf-8');
+    return JSON.parse(data);
+  } catch (error) {
+    // 文件不存在或读取失败，返回空数组
+    return [];
+  }
+}
+```
+
+### 8.3 无工作区处理
+
+没有打开工作区时，自动创建默认任务：
+
+```typescript
+private async ensureCurrentTask(): Promise<void> {
+  if (!this.currentTaskId || !this.currentProjectPath) {
+    const workspacePath = vscode.workspace.workspaceFolders?.[0]?.uri.fsPath;
+    if (workspacePath) {
+      await this.createTask(workspacePath, "默认任务");
+    } else {
+      throw new Error("没有打开的工作区，无法创建任务");
+    }
+  }
+}
+```
+
+---
+
+## 9. 未来扩展
+
+### 9.1 会话切换功能
+
+目前 `selectConversation` 功能暂未实现，未来可以支持：
+- 点击历史会话，加载该会话的完整对话历史
+- 在新标签页中打开历史会话
+- 继续历史会话的对话
+
+### 9.2 会话搜索
+
+- 支持按关键词搜索会话
+- 支持按时间范围筛选
+- 支持按 Token 使用量排序
+
+### 9.3 会话导出
+
+- 导出为 Markdown 格式
+- 导出为 JSON 格式
+- 导出为 PDF 格式
+
+### 9.4 会话统计
+
+- 显示总对话轮次
+- 显示总 Token 使用量
+- 显示平均响应时间
+
+### 9.5 云端同步
+
+- 支持将会话数据同步到云端
+- 支持多设备访问
+- 支持团队协作
+
+---
+
+## 10. 总结
+
+IC Coder 的会话存储系统采用文件系统存储方案，具有以下优势：
+
+1. **简单可靠**：无需额外的数据库依赖
+2. **易于备份**：直接复制文件即可备份
+3. **跨平台**：支持 Windows、macOS、Linux
+4. **可扩展**：易于添加新的数据字段
+5. **高性能**：分页加载，避免一次性加载大量数据
+
+系统已经实现了核心的会话管理功能，包括任务创建、消息保存、历史查询等，为用户提供了完整的会话历史管理体验。

package.json

@@ -3,8 +3,9 @@
   "displayName": "IC Coder plugin",
   "description": "Agentic Verilog Coding Platform for Real-World FPGAs",
   "version": "0.0.2",
+  "publisher": "ic-coder-team",
   "engines": {
-    "vscode": "^1.107.0"
+    "vscode": "^1.80.0"
   },
   "icon": "media/图案（方底）.png",
   "categories": [
@@ -91,6 +92,26 @@
           "type": "webview"
         }
       ]
+    },
+    "configuration": {
+      "title": "IC Coder",
+      "properties": {
+        "icCoder.backendUrl": {
+          "type": "string",
+          "default": "http://192.168.1.108:2233",
+          "description": "后端服务地址"
+        },
+        "icCoder.timeout": {
+          "type": "number",
+          "default": 60000,
+          "description": "请求超时时间（毫秒）"
+        },
+        "icCoder.userId": {
+          "type": "string",
+          "default": "default-user",
+          "description": "用户ID（临时配置）"
+        }
+      }
     }
   },
   "scripts": {
@@ -108,9 +129,10 @@
   "devDependencies": {
     "@types/mocha": "^10.0.10",
     "@types/node": "22.x",
-    "@types/vscode": "^1.107.0",
+    "@types/vscode": "^1.80.0",
     "@vscode/test-cli": "^0.0.12",
     "@vscode/test-electron": "^2.5.2",
+    "@vscode/vsce": "^3.7.1",
     "eslint": "^9.39.1",
     "ts-loader": "^9.5.4",
     "typescript": "^5.9.3",
@@ -125,6 +147,7 @@
   ],
   "dependencies": {
     "@wavedrom/doppler": "^1.14.0",
+    "eventsource-parser": "^3.0.6",
     "iconv-lite": "^0.7.1",
     "onml": "^2.1.0",
     "style-mod": "^4.1.3",

src/config/settings.ts

@@ -0,0 +1,48 @@
+/**
+ * 配置管理
+ * 从 VSCode 设置读取配置项
+ */
+import * as vscode from "vscode";
+
+/** 配置项接口 */
+export interface IccoderConfig {
+  /** 后端服务地址 */
+  backendUrl: string;
+  /** 请求超时时间（毫秒） */
+  timeout: number;
+  /** 用户ID（临时使用，后续对接认证） */
+  userId: string;
+}
+
+/** 默认配置 */
+const DEFAULT_CONFIG: IccoderConfig = {
+  backendUrl: "http://localhost:8080",
+  timeout: 60000,
+  userId: "default-user",
+};
+
+/**
+ * 获取配置项
+ */
+export function getConfig(): IccoderConfig {
+  const config = vscode.workspace.getConfiguration("icCoder");
+
+  return {
+    backendUrl: config.get<string>("backendUrl", DEFAULT_CONFIG.backendUrl),
+    timeout: config.get<number>("timeout", DEFAULT_CONFIG.timeout),
+    userId: config.get<string>("userId", DEFAULT_CONFIG.userId),
+  };
+}
+
+/**
+ * 获取后端 API 地址
+ */
+export function getApiUrl(path: string): string {
+  const { backendUrl } = getConfig();
+  // 确保 URL 格式正确
+  const baseUrl = backendUrl.endsWith("/")
+    ? backendUrl.slice(0, -1)
+    : backendUrl;
+  const apiPath = path.startsWith("/") ? path : `/${path}`;
+  return `${baseUrl}${apiPath}`;
+}

src/constants/toolIcons.ts

@@ -0,0 +1,52 @@
+/**
+ * 工具图标定义
+ * 包含各种工具的 SVG 图标
+ */
+
+/**
+ * 折叠图标 SVG（用于可折叠的工具结果）
+ */
+export const collapseIconSvg = `
+  <span class="tool-collapse-icon">
+    <svg class="icon-collapsed" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
+      <path d="M355.05845325 160.07583932c-19.63862503 19.63862503-19.63862503 51.53175211 0 71.17037712L618.05891976 494.24668297c9.74075802 9.74075802 9.74075802 25.76587604 0 35.50663406L355.05845325 792.75378356c-19.63862503 19.63862503-19.63862503 51.53175211 0 71.17037712s51.53175211 19.63862503 71.17037716 0L706.98261396 583.17037714c39.27725009-39.27725009 39.27725009-102.90639522 0-142.18364526L426.22883041 160.07583932c-19.63862503-19.63862503-51.53175211-19.63862503-71.17037716 0z" fill="#8a8a8a"/>
+    </svg>
+    <svg class="icon-expanded" style="display:none;" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
+      <path d="M899.70688 272.92672l-382.19776 373.53472-393.45664-384.512a43.52 43.52 0 0 0-60.52352 0 41.14944 41.14944 0 0 0 0 59.14624l423.72096 414.11584a43.35616 43.35616 0 0 0 60.56448 0l412.4672-403.11296a41.20064 41.20064 0 0 0 11.06432-40.41728 42.3424 42.3424 0 0 0-30.2848-29.58336 43.52 43.52 0 0 0-41.35424 10.84416z m0 0" fill="#8a8a8a"/>
+    </svg>
+  </span>
+`;
+
+/**
+ * 文件写入完成图标 SVG
+ */
+export const fileWriteIconSvg = `
+  <span class="tool-file-write-icon">
+    <svg viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
+      <path d="M866.304 852.096H161.728a31.36 31.36 0 0 1-30.528-30.592 31.36 31.36 0 0 1 30.528-30.528h704.64a31.36 31.36 0 0 1 30.528 30.528c0 16.32-12.224 30.592-30.592 30.592z m-65.152-134.4h-392.96a31.36 31.36 0 0 1-30.592-30.592 31.36 31.36 0 0 1 30.528-30.528h391.04a31.36 31.36 0 0 1 30.528 30.528c0 16.32-12.224 30.592-28.544 30.592z m-596.672-179.2l91.648 93.632-40.704 40.768-91.648-91.648 40.704-42.752zM552.704 188.16l91.648 93.696-42.752 40.704-91.648-91.648 42.752-42.752z" fill="#8a8a8a"/>
+      <path d="M176 733.952a72.96 72.96 0 0 1-50.88-22.4c-14.272-14.272-22.4-36.672-22.4-56.96l8.128-99.84 423.552-425.6a104.576 104.576 0 0 1 75.328-30.528c32.64 0 63.168 14.272 85.568 36.672 24.384 24.384 36.608 56.96 36.608 89.6 0 28.48-12.16 54.976-32.576 73.28l-419.456 427.648-99.84 8.128H176z m-4.096-152.704l-6.08 77.376c0 4.096 2.048 8.128 4.096 8.128h2.048l77.376-6.08 417.344-425.6c8.128-8.128 12.224-18.304 12.224-28.48 0-14.272-6.08-28.48-16.32-38.72-10.24-10.24-22.4-16.32-36.672-16.32-12.16 0-22.4 4.096-30.528 12.224L171.904 581.248z" fill="#8a8a8a"/>
+    </svg>
+  </span>
+`;
+
+/**
+ * 语法检查图标 SVG
+ */
+export const syntaxCheckIconSvg = `
+  <span class="tool-syntax-check-icon">
+    <svg viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
+      <path d="M143.36 241.8688h638.976a33.28 33.28 0 0 0 0-66.56H143.36a33.28 33.28 0 0 0 0 66.56zM143.36 421.2736h423.5264a33.28 33.28 0 0 0 0-66.56H143.36a33.28 33.28 0 0 0 0 66.56zM419.0208 532.8384H143.36a33.28 33.28 0 0 0 0 66.56h275.6608a33.28 33.28 0 0 0 0-66.56zM365.5168 709.5296H129.0752a33.28 33.28 0 0 0 0 66.56h236.4416a33.28 33.28 0 1 0 0-66.56zM918.4256 791.8592l-82.5856-82.432a178.8928 178.8928 0 1 0-47.0528 47.0528l82.5856 82.4832a33.28 33.28 0 1 0 47.0528-47.104z m-342.3232-182.9376a112.128 112.128 0 1 1 112.128 112.0768 112.2816 112.2816 0 0 1-112.128-112.0768z" fill="#8a8a8a"/>
+    </svg>
+  </span>
+`;
+
+/**
+ * 已检索代码图标 SVG
+ */
+export const SearchCode = `
+  <span class="tool-search-code-icon">
+    <svg viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
+      <path d="M916.33 859.76L678.51 621.94A318.92 318.92 0 0 0 768 400c0-176.73-143.27-320-320-320S128 223.27 128 400s143.27 320 320 320a318.48 318.48 0 0 0 167.88-47.55l243.88 243.88a40 40 0 1 0 56.57-56.57zM192 400c0-141.38 114.62-256 256-256s256 114.62 256 256-114.62 256-256 256-256-114.62-256-256z" fill="#8a8a8a"/>
+    </svg>
+  </span>
+`;

src/extension.ts

@@ -13,16 +13,16 @@ export function activate(context: vscode.ExtensionContext) {
   // 注册命令：打开助手面板
   const openPanelCommand = vscode.commands.registerCommand(
     "ic-coder.openPanel",
-    () => {
+    async () => {
-      showICHelperPanel(context);
+      await showICHelperPanel(context);
     }
   );
 
   // 注册命令：打开聊天（用于侧边栏）
   const openChatCommand = vscode.commands.registerCommand(
     "ic-coder.openChat",
-    () => {
+    async () => {
-      showICHelperPanel(context);
+      await showICHelperPanel(context);
     }
   );
 

src/panels/ICHelperPanel.ts

@@ -6,14 +6,21 @@ import {
   handleReadFile,
   handleUpdateFile,
   handleRenameFile,
-  handleReplaceInFile
+  handleReplaceInFile,
+  handleUserAnswer,
+  abortCurrentDialog,
 } from "../utils/messageHandler";
 import { VCDViewerPanel } from "./VCDViewerPanel";
+import { ChatHistoryManager } from "../utils/chatHistoryManager";
+import { MessageType } from "../types/chatHistory";
 
 /**
  * 创建并显示 IC 助手面板
  */
-export function showICHelperPanel(context: vscode.ExtensionContext, viewColumn?: vscode.ViewColumn) {
+export async function showICHelperPanel(
+  context: vscode.ExtensionContext,
+  viewColumn?: vscode.ViewColumn
+) {
   // 创建WebView面板
   const panel = vscode.window.createWebviewPanel(
     "icCoder", // 面板ID
@@ -26,8 +33,16 @@ export function showICHelperPanel(context: vscode.ExtensionContext, viewColumn?:
     }
   );
 
+  // 为面板生成唯一ID
+  const panelId = `panel_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
+  (panel as any).__uniqueId = panelId;
+
   // 设置标签页图标
-  panel.iconPath = vscode.Uri.joinPath(context.extensionUri, "media", "图案（方底）.png");
+  panel.iconPath = vscode.Uri.joinPath(
+    context.extensionUri,
+    "media",
+    "图案（方底）.png"
+  );
 
   // 获取页面内图标URI
   const iconUri = panel.webview.asWebviewUri(
@@ -39,9 +54,29 @@ export function showICHelperPanel(context: vscode.ExtensionContext, viewColumn?:
 
   // 处理消息
   panel.webview.onDidReceiveMessage(
-    (message) => {
+    async (message) => {
+      const historyManager = ChatHistoryManager.getInstance();
+      const panelId = (panel as any).__uniqueId;
+
       switch (message.command) {
         case "sendMessage":
+          // 仅在用户发送消息时，确保面板有任务上下文
+          // 如果没有，则创建新任务（仅在首次发送消息时）
+          if (!historyManager.getPanelTask(panelId)) {
+            const workspacePath = vscode.workspace.workspaceFolders?.[0]?.uri.fsPath;
+            if (workspacePath) {
+              try {
+                const taskMeta = await historyManager.createTask(workspacePath, "新对话");
+                historyManager.setPanelTask(panelId, taskMeta.taskId, workspacePath);
+              } catch (error) {
+                console.error("创建任务失败:", error);
+              }
+            }
+          }
+
+          // 切换到当前面板的任务上下文
+          historyManager.switchToPanelTask(panelId);
+
           handleUserMessage(panel, message.text, context.extensionPath);
           break;
         case "readFile":
@@ -54,7 +89,12 @@ export function showICHelperPanel(context: vscode.ExtensionContext, viewColumn?:
           handleRenameFile(panel, message.oldPath, message.newPath);
           break;
         case "replaceInFile":
-          handleReplaceInFile(panel, message.filePath, message.searchText, message.replaceText);
+          handleReplaceInFile(
+            panel,
+            message.filePath,
+            message.searchText,
+            message.replaceText
+          );
           break;
         case "insertCode":
           insertCodeToEditor(message.code);
@@ -65,7 +105,10 @@ export function showICHelperPanel(context: vscode.ExtensionContext, viewColumn?:
         case "openWaveformViewer":
           // 打开波形查看器
           if (message.vcdFilePath) {
-            VCDViewerPanel.createOrShow(context.extensionUri, message.vcdFilePath);
+            VCDViewerPanel.createOrShow(
+              context.extensionUri,
+              message.vcdFilePath
+            );
           }
           break;
         case "getVCDInfo":
@@ -79,20 +122,43 @@ export function showICHelperPanel(context: vscode.ExtensionContext, viewColumn?:
           showICHelperPanel(context, panel.viewColumn);
           break;
         case "loadConversationHistory":
-          // 加载会话历史（暂未实现）
+          // 加载会话历史（支持分页）
-          panel.webview.postMessage({
+          loadConversationHistory(panel, message.offset || 0, message.limit || 10);
-            command: 'conversationHistory',
-            history: []
-          });
           break;
         case "selectConversation":
-          // 选择会话（暂未实现）
+          // 选择会话
+          if (message.conversationId) {
+            selectConversation(panel, message.conversationId, context.extensionPath);
+          }
+          break;
+        // 新增：处理用户回答
+        case "submitAnswer":
+          handleUserAnswer(
+            message.askId,
+            message.selected,
+            message.customInput
+          );
+          break;
+        // 新增：中止对话
+        case "abortDialog":
+          abortCurrentDialog();
           break;
       }
     },
     undefined,
     context.subscriptions
   );
+
+  // 面板关闭时清理任务映射
+  panel.onDidDispose(
+    () => {
+      const historyManager = ChatHistoryManager.getInstance();
+      const panelId = (panel as any).__uniqueId;
+      historyManager.removePanelTask(panelId);
+    },
+    undefined,
+    context.subscriptions
+  );
 }
 
 /**
@@ -104,8 +170,8 @@ async function getVCDFileInfo(
   containerId: string
 ) {
   try {
-    const fs = require('fs');
+    const fs = require("fs");
-    const path = require('path');
+    const path = require("path");
 
     // 检查文件是否存在
     if (!fs.existsSync(vcdFilePath)) {
@@ -113,11 +179,11 @@ async function getVCDFileInfo(
         command: "vcdInfo",
         containerId: containerId,
         vcdInfo: {
-          signalCount: 'N/A',
+          signalCount: "N/A",
-          timeRange: 'N/A',
+          timeRange: "N/A",
-          fileSize: 'N/A',
+          fileSize: "N/A",
-          error: '文件不存在'
+          error: "文件不存在",
-        }
+        },
       });
       return;
     }
@@ -125,19 +191,20 @@ async function getVCDFileInfo(
     // 获取文件大小
     const stats = fs.statSync(vcdFilePath);
     const fileSizeKB = stats.size / 1024;
-    const fileSize = fileSizeKB < 1024
+    const fileSize =
+      fileSizeKB < 1024
         ? `${fileSizeKB.toFixed(2)} KB`
         : `${(fileSizeKB / 1024).toFixed(2)} MB`;
 
     // 读取 VCD 文件内容
-    const content = fs.readFileSync(vcdFilePath, 'utf-8');
+    const content = fs.readFileSync(vcdFilePath, "utf-8");
 
     // 解析信号数量
     const varMatches = content.match(/\$var/g);
     const signalCount = varMatches ? varMatches.length : 0;
 
     // 解析时间范围
-    let timeRange = 'N/A';
+    let timeRange = "N/A";
     const timeMatch = content.match(/#(\d+)/g);
     if (timeMatch && timeMatch.length > 0) {
       const times = timeMatch.map((t: string) => parseInt(t.substring(1)));
@@ -157,21 +224,20 @@ async function getVCDFileInfo(
         signalCount: signalCount.toString(),
         timeRange: timeRange,
         fileSize: fileSize,
-        signals: signals // 添加真实信号数据
+        signals: signals, // 添加真实信号数据
-      }
+      },
     });
-
   } catch (error) {
-    console.error('获取 VCD 文件信息失败:', error);
+    console.error("获取 VCD 文件信息失败:", error);
     panel.webview.postMessage({
       command: "vcdInfo",
       containerId: containerId,
       vcdInfo: {
-        signalCount: 'N/A',
+        signalCount: "N/A",
-        timeRange: 'N/A',
+        timeRange: "N/A",
-        fileSize: 'N/A',
+        fileSize: "N/A",
-        error: error instanceof Error ? error.message : '未知错误'
+        error: error instanceof Error ? error.message : "未知错误",
-      }
+      },
     });
   }
 }
@@ -191,9 +257,16 @@ function parseVCDSignals(content: string, maxSignals: number = 3) {
     // 1. 解析信号定义部分
     const varRegex = /\$var\s+(\w+)\s+(\d+)\s+(\S+)\s+([^\$]+?)\s+\$end/g;
     let match;
-    const signalDefs: Array<{ name: string; identifier: string; width: number }> = [];
+    const signalDefs: Array<{
+      name: string;
+      identifier: string;
+      width: number;
+    }> = [];
 
-    while ((match = varRegex.exec(content)) !== null && signalDefs.length < maxSignals) {
+    while (
+      (match = varRegex.exec(content)) !== null &&
+      signalDefs.length < maxSignals
+    ) {
       const width = parseInt(match[2]);
       const identifier = match[3];
       const name = match[4].trim();
@@ -202,7 +275,7 @@ function parseVCDSignals(content: string, maxSignals: number = 3) {
     }
 
     // 2. 找到数据变化部分的起始位置
-    const dumpvarsIndex = content.indexOf('$dumpvars');
+    const dumpvarsIndex = content.indexOf("$dumpvars");
     if (dumpvarsIndex === -1) {
       return signals;
     }
@@ -215,13 +288,13 @@ function parseVCDSignals(content: string, maxSignals: number = 3) {
       let currentTime = 0;
 
       // 分行处理数据
-      const lines = dataSection.split('\n');
+      const lines = dataSection.split("\n");
 
       for (const line of lines) {
         const trimmedLine = line.trim();
 
         // 解析时间戳
-        if (trimmedLine.startsWith('#')) {
+        if (trimmedLine.startsWith("#")) {
           currentTime = parseInt(trimmedLine.substring(1));
           continue;
         }
@@ -231,13 +304,17 @@ function parseVCDSignals(content: string, maxSignals: number = 3) {
         // 格式2: 多比特信号 "b1010 !"
         if (signalDef.width === 1) {
           // 单比特信号
-          const singleBitMatch = trimmedLine.match(new RegExp(`^([01xz])${signalDef.identifier}$`));
+          const singleBitMatch = trimmedLine.match(
+            new RegExp(`^([01xz])${signalDef.identifier}$`)
+          );
           if (singleBitMatch) {
             values.push({ time: currentTime, value: singleBitMatch[1] });
           }
         } else {
           // 多比特信号
-          const multiBitMatch = trimmedLine.match(new RegExp(`^b([01xz]+)\\s+${signalDef.identifier}$`));
+          const multiBitMatch = trimmedLine.match(
+            new RegExp(`^b([01xz]+)\\s+${signalDef.identifier}$`)
+          );
           if (multiBitMatch) {
             values.push({ time: currentTime, value: multiBitMatch[1] });
           }
@@ -253,13 +330,235 @@ function parseVCDSignals(content: string, maxSignals: number = 3) {
         name: signalDef.name,
         identifier: signalDef.identifier,
         width: signalDef.width,
-        values: values
+        values: values,
       });
     }
-
   } catch (error) {
-    console.error('解析 VCD 信号数据失败:', error);
+    console.error("解析 VCD 信号数据失败:", error);
   }
 
   return signals;
 }
+
+/**
+ * 加载会话历史（支持分页）
+ */
+async function loadConversationHistory(
+  panel: vscode.WebviewPanel,
+  offset: number = 0,
+  limit: number = 10
+) {
+  try {
+    const historyManager = ChatHistoryManager.getInstance();
+    const workspacePath = vscode.workspace.workspaceFolders?.[0]?.uri.fsPath;
+
+    if (!workspacePath) {
+      // 没有打开的工作区，返回空历史
+      panel.webview.postMessage({
+        command: "conversationHistory",
+        items: [],
+        total: 0,
+        hasMore: false,
+      });
+      return;
+    }
+
+    // 获取会话历史列表（支持分页）
+    const result = await historyManager.getConversationHistoryList(
+      workspacePath,
+      offset,
+      limit
+    );
+
+    // 发送会话历史到前端
+    panel.webview.postMessage({
+      command: "conversationHistory",
+      items: result.items,
+      total: result.total,
+      hasMore: result.hasMore,
+    });
+  } catch (error) {
+    console.error("加载会话历史失败:", error);
+    // 发生错误时返回空历史
+    panel.webview.postMessage({
+      command: "conversationHistory",
+      items: [],
+      total: 0,
+      hasMore: false,
+    });
+  }
+}
+
+/**
+ * 选择并加载指定的会话
+ */
+async function selectConversation(
+  panel: vscode.WebviewPanel,
+  taskId: string,
+  extensionPath: string
+) {
+  try {
+    const historyManager = ChatHistoryManager.getInstance();
+    const workspacePath = vscode.workspace.workspaceFolders?.[0]?.uri.fsPath;
+
+    if (!workspacePath) {
+      vscode.window.showErrorMessage("没有打开的工作区");
+      return;
+    }
+
+    // 加载任务会话
+    const taskSession = await historyManager.loadTaskSession(workspacePath, taskId);
+
+    if (!taskSession) {
+      vscode.window.showErrorMessage(`加载任务 ${taskId} 失败: 任务不存在或数据损坏`);
+      return;
+    }
+
+    // 切换到该任务
+    const switched = await historyManager.switchTask(workspacePath, taskId);
+    if (!switched) {
+      vscode.window.showErrorMessage(`切换到任务 ${taskId} 失败`);
+      return;
+    }
+
+    // 更新面板的任务映射，确保后续对话保存到正确的任务中
+    const panelId = (panel as any).__uniqueId;
+    historyManager.setPanelTask(panelId, taskId, workspacePath);
+
+    // 清空当前聊天界面
+    panel.webview.postMessage({
+      command: "clearChat"
+    });
+
+    // 将会话历史消息转换为 segments 格式并发送到前端显示
+    const segments: any[] = [];
+    let i = 0;
+
+    while (i < taskSession.messages.length) {
+      const message = taskSession.messages[i];
+
+      if (message.type === MessageType.USER) {
+        // 用户消息 - 如果有累积的 segments，先发送
+        if (segments.length > 0) {
+          panel.webview.postMessage({
+            command: "receiveSegments",
+            segments: [...segments]
+          });
+          segments.length = 0;
+        }
+
+        // 发送用户消息
+        const textContent = message.contents?.find(c => c.type === 'TEXT');
+        if (textContent && 'text' in textContent) {
+          panel.webview.postMessage({
+            command: "addUserMessage",
+            text: textContent.text
+          });
+        }
+        i++;
+      } else if (message.type === MessageType.AI) {
+        // AI消息 - 如果有 segments，直接使用
+        if (message.segments && message.segments.length > 0) {
+          panel.webview.postMessage({
+            command: "receiveSegments",
+            segments: message.segments
+          });
+          i++;
+        } else {
+          // 旧格式：需要转换为 segments
+          // 收集连续的 AI 消息、工具调用和工具结果
+          if (message.text) {
+            segments.push({
+              type: 'text',
+              content: message.text
+            });
+          }
+
+          // 检查是否有工具调用
+          if (message.toolExecutionRequests && message.toolExecutionRequests.length > 0) {
+            for (const toolReq of message.toolExecutionRequests) {
+              // 查找对应的工具执行结果
+              let toolResult = '';
+              if (i + 1 < taskSession.messages.length) {
+                const nextMsg = taskSession.messages[i + 1];
+                if (nextMsg.type === MessageType.TOOL_EXECUTION_RESULT &&
+                    nextMsg.id === toolReq.id) {
+                  toolResult = nextMsg.text;
+                  i++; // 跳过工具结果消息
+                }
+              }
+
+              segments.push({
+                type: 'tool',
+                toolName: toolReq.name,
+                askId: toolReq.id,
+                toolResult: toolResult
+              });
+            }
+          }
+
+          i++;
+
+          // 继续收集后续的 AI 消息，直到遇到用户消息或有 segments 的 AI 消息
+          while (i < taskSession.messages.length) {
+            const nextMsg = taskSession.messages[i];
+            if (nextMsg.type === MessageType.USER) {
+              break;
+            }
+            if (nextMsg.type === MessageType.AI) {
+              if (nextMsg.segments && nextMsg.segments.length > 0) {
+                break;
+              }
+              if (nextMsg.text) {
+                segments.push({
+                  type: 'text',
+                  content: nextMsg.text
+                });
+              }
+              if (nextMsg.toolExecutionRequests && nextMsg.toolExecutionRequests.length > 0) {
+                for (const toolReq of nextMsg.toolExecutionRequests) {
+                  let toolResult = '';
+                  if (i + 1 < taskSession.messages.length) {
+                    const resultMsg = taskSession.messages[i + 1];
+                    if (resultMsg.type === MessageType.TOOL_EXECUTION_RESULT &&
+                        resultMsg.id === toolReq.id) {
+                      toolResult = resultMsg.text;
+                      i++; // 跳过工具结果消息
+                    }
+                  }
+                  segments.push({
+                    type: 'tool',
+                    toolName: toolReq.name,
+                    askId: toolReq.id,
+                    toolResult: toolResult
+                  });
+                }
+              }
+              i++;
+            } else if (nextMsg.type === MessageType.TOOL_EXECUTION_RESULT) {
+              // 独立的工具结果（没有被上面处理的）
+              i++;
+            } else {
+              i++;
+            }
+          }
+        }
+      } else {
+        i++;
+      }
+    }
+
+    // 发送剩余的 segments
+    if (segments.length > 0) {
+      panel.webview.postMessage({
+        command: "receiveSegments",
+        segments: segments
+      });
+    }
+
+    vscode.window.showInformationMessage(`已加载会话: ${taskSession.meta.taskName}`);
+  } catch (error) {
+    console.error("选择会话失败:", error);
+    vscode.window.showErrorMessage(`加载会话失败: ${error}`);
+  }
+}

src/services/apiClient.ts

@@ -0,0 +1,154 @@
+/**
+ * API 客户端
+ * 封装与后端的 HTTP 通信
+ */
+import * as https from 'https';
+import * as http from 'http';
+import { URL } from 'url';
+import { getApiUrl, getConfig } from '../config/settings';
+import type { ToolCallResult, AnswerRequest, ToolResultResponse, AnswerResponse } from '../types/api';
+
+/**
+ * HTTP 请求选项
+ */
+interface RequestOptions {
+  method: 'GET' | 'POST' | 'PUT' | 'DELETE';
+  headers?: Record<string, string>;
+  body?: unknown;
+  timeout?: number;
+}
+
+/**
+ * 发送 HTTP 请求
+ */
+async function request<T>(path: string, options: RequestOptions): Promise<T> {
+  const url = new URL(getApiUrl(path));
+  const { timeout } = getConfig();
+
+  const isHttps = url.protocol === 'https:';
+  const httpModule = isHttps ? https : http;
+
+  const requestOptions: http.RequestOptions = {
+    hostname: url.hostname,
+    port: url.port || (isHttps ? 443 : 80),
+    path: url.pathname + url.search,
+    method: options.method,
+    headers: {
+      'Content-Type': 'application/json',
+      ...options.headers
+    },
+    timeout: options.timeout || timeout
+  };
+
+  return new Promise((resolve, reject) => {
+    const req = httpModule.request(requestOptions, (res) => {
+      let data = '';
+
+      res.on('data', (chunk) => {
+        data += chunk;
+      });
+
+      res.on('end', () => {
+        try {
+          const json = JSON.parse(data);
+          if (res.statusCode && res.statusCode >= 200 && res.statusCode < 300) {
+            resolve(json as T);
+          } else {
+            reject(new Error(json.error || json.message || `HTTP ${res.statusCode}`));
+          }
+        } catch (e) {
+          reject(new Error(`解析响应失败: ${data}`));
+        }
+      });
+    });
+
+    req.on('error', (error) => {
+      reject(error);
+    });
+
+    req.on('timeout', () => {
+      req.destroy();
+      reject(new Error('请求超时'));
+    });
+
+    if (options.body) {
+      req.write(JSON.stringify(options.body));
+    }
+
+    req.end();
+  });
+}
+
+/**
+ * 提交工具执行结果
+ * POST /api/tool/result
+ */
+export async function submitToolResult(result: ToolCallResult): Promise<ToolResultResponse> {
+  console.log(`[API] 提交工具结果: callId=${result.id}`);
+  return request<ToolResultResponse>('/api/tool/result', {
+    method: 'POST',
+    body: result
+  });
+}
+
+/**
+ * 提交用户回答
+ * POST /api/task/answer
+ */
+export async function submitAnswer(answer: AnswerRequest): Promise<AnswerResponse> {
+  console.log(`[API] 提交用户回答: askId=${answer.askId}`);
+  return request<AnswerResponse>('/api/task/answer', {
+    method: 'POST',
+    body: answer
+  });
+}
+
+/**
+ * 健康检查
+ * GET /api/dialog/health
+ */
+export async function healthCheck(): Promise<{ status: string }> {
+  return request<{ status: string }>('/api/dialog/health', {
+    method: 'GET',
+    timeout: 5000
+  });
+}
+
+/**
+ * 创建成功的工具结果
+ */
+export function createSuccessResult(id: number, text: string): ToolCallResult {
+  return {
+    jsonrpc: '2.0',
+    id,
+    result: {
+      content: [{ type: 'text', text }],
+      isError: false
+    }
+  };
+}
+
+/**
+ * 创建业务错误的工具结果（如编译失败）
+ */
+export function createBusinessErrorResult(id: number, errorMessage: string): ToolCallResult {
+  return {
+    jsonrpc: '2.0',
+    id,
+    result: {
+      content: [{ type: 'text', text: errorMessage }],
+      isError: true
+    }
+  };
+}
+
+/**
+ * 创建系统错误的工具结果
+ */
+export function createSystemErrorResult(id: number, code: number, message: string): ToolCallResult {
+  return {
+    jsonrpc: '2.0',
+    id,
+    error: { code, message }
+  };
+}

src/services/dialogService.ts

@@ -0,0 +1,337 @@
+/**
+ * 对话服务
+ * 整合 SSE 通信、工具执行、用户交互
+ */
+import * as vscode from 'vscode';
+import { startStreamDialog, generateTaskId, SSEController, SSECallbacks } from './sseHandler';
+import { executeToolCall, createToolExecutorContext, ToolExecutorContext } from './toolExecutor';
+import { userInteractionManager } from './userInteraction';
+import { getConfig } from '../config/settings';
+import type { DialogRequest, ToolCallRequest, AskUserEvent } from '../types/api';
+
+/**
+ * 消息段落类型
+ */
+export interface MessageSegment {
+  type: 'text' | 'tool' | 'question';
+  content?: string;
+  toolName?: string;
+  toolStatus?: 'running' | 'success' | 'error';
+  toolResult?: string;
+  askId?: string;
+  question?: string;
+  options?: string[];
+}
+
+/**
+ * 对话回调接口
+ */
+export interface DialogCallbacks {
+  /** 收到文本（可能多次调用，流式） */
+  onText?: (text: string, isStreaming: boolean) => void;
+  /** 工具开始执行 */
+  onToolStart?: (toolName: string) => void;
+  /** 工具执行完成 */
+  onToolComplete?: (toolName: string, result: string) => void;
+  /** 工具执行错误 */
+  onToolError?: (toolName: string, error: string) => void;
+  /** 显示问题（ask_user） */
+  onQuestion?: (askId: string, question: string, options: string[]) => void;
+  /** 实时更新段落（流式过程中） */
+  onSegmentUpdate?: (segments: MessageSegment[]) => void;
+  /** 对话完成，返回所有段落 */
+  onComplete?: (segments: MessageSegment[]) => void;
+  /** 错误 */
+  onError?: (message: string) => void;
+  /** 通知消息 */
+  onNotification?: (message: string) => void;
+}
+
+/**
+ * 对话会话
+ */
+export class DialogSession {
+  private taskId: string;
+  private sseController: SSEController | null = null;
+  private toolContext: ToolExecutorContext;
+  private accumulatedText = '';
+  private isActive = false;
+  private segments: MessageSegment[] = [];
+  private currentTextSegment: MessageSegment | null = null;
+
+  constructor(extensionPath: string) {
+    this.taskId = generateTaskId();
+    this.toolContext = createToolExecutorContext(extensionPath);
+  }
+
+  /**
+   * 添加文本到当前文本段落
+   */
+  private appendText(text: string): void {
+    if (!this.currentTextSegment) {
+      this.currentTextSegment = { type: 'text', content: '' };
+      this.segments.push(this.currentTextSegment);
+    }
+    this.currentTextSegment.content = (this.currentTextSegment.content || '') + text;
+  }
+
+  /**
+   * 结束当前文本段落
+   */
+  private finalizeTextSegment(): void {
+    this.currentTextSegment = null;
+  }
+
+  /**
+   * 添加工具段落
+   */
+  private addToolSegment(toolName: string, status: 'running' | 'success' | 'error', result?: string): MessageSegment {
+    this.finalizeTextSegment();
+    const segment: MessageSegment = {
+      type: 'tool',
+      toolName,
+      toolStatus: status,
+      toolResult: result
+    };
+    this.segments.push(segment);
+    return segment;
+  }
+
+  /**
+   * 更新工具段落状态
+   */
+  private updateToolSegment(toolName: string, status: 'success' | 'error', result?: string): void {
+    // 找到最后一个匹配的工具段落
+    for (let i = this.segments.length - 1; i >= 0; i--) {
+      const seg = this.segments[i];
+      if (seg.type === 'tool' && seg.toolName === toolName && seg.toolStatus === 'running') {
+        seg.toolStatus = status;
+        seg.toolResult = result;
+        break;
+      }
+    }
+  }
+
+  /**
+   * 获取任务ID
+   */
+  getTaskId(): string {
+    return this.taskId;
+  }
+
+  /**
+   * 是否活跃
+   */
+  get active(): boolean {
+    return this.isActive;
+  }
+
+  /**
+   * 发送消息并开始流式对话
+   */
+  async sendMessage(
+    message: string,
+    callbacks: DialogCallbacks
+  ): Promise<void> {
+    if (this.isActive) {
+      callbacks.onError?.('当前有对话正在进行中');
+      return;
+    }
+
+    this.isActive = true;
+    this.accumulatedText = '';
+    this.segments = [];
+    this.currentTextSegment = null;
+
+    const config = getConfig();
+    const request: DialogRequest = {
+      taskId: this.taskId,
+      message,
+      userId: config.userId,
+      toolMode: 'AGENT'
+    };
+
+    const sseCallbacks: SSECallbacks = {
+      onTextDelta: (data) => {
+        this.accumulatedText += data.text;
+        this.appendText(data.text);
+        console.log('[DialogSession] onTextDelta, 累积文本长度:', this.accumulatedText.length);
+        callbacks.onText?.(this.accumulatedText, true);
+        // 实时发送段落更新
+        callbacks.onSegmentUpdate?.(this.segments);
+      },
+
+      onToolCall: async (data: ToolCallRequest) => {
+        const toolName = data.params.name;
+        console.log('[DialogSession] onToolCall:', toolName);
+        // 检查是否已经有相同的工具段落（可能由 onToolStart 添加）
+        const lastToolSegment = this.segments.filter(s => s.type === 'tool').pop();
+        if (lastToolSegment && lastToolSegment.toolName === toolName && lastToolSegment.toolStatus === 'running') {
+          console.log('[DialogSession] onToolCall: 跳过重复的工具段落:', toolName);
+        } else {
+          this.addToolSegment(toolName, 'running');
+          // 实时发送段落更新
+          callbacks.onSegmentUpdate?.(this.segments);
+        }
+        // 注意：不在这里调用 callbacks.onToolStart，避免与 onToolStart 事件重复
+        try {
+          await executeToolCall(data, this.toolContext);
+          this.updateToolSegment(toolName, 'success', '执行完成');
+          // 实时发送段落更新
+          callbacks.onSegmentUpdate?.(this.segments);
+          // 也不调用 callbacks.onToolComplete，避免重复
+        } catch (error) {
+          const errorMsg = error instanceof Error ? error.message : '未知错误';
+          this.updateToolSegment(toolName, 'error', errorMsg);
+          callbacks.onToolError?.(toolName, errorMsg);
+          // 实时发送段落更新
+          callbacks.onSegmentUpdate?.(this.segments);
+        }
+      },
+
+      onToolStart: (data) => {
+        console.log('[DialogSession] onToolStart:', data.tool_name);
+        // 检查是否已经有相同的工具段落（可能由 onToolCall 添加）
+        const lastToolSegment = this.segments.filter(s => s.type === 'tool').pop();
+        if (lastToolSegment && lastToolSegment.toolName === data.tool_name && lastToolSegment.toolStatus === 'running') {
+          console.log('[DialogSession] 跳过重复的工具段落:', data.tool_name);
+        } else {
+          this.addToolSegment(data.tool_name, 'running');
+          // 实时发送段落更新
+          callbacks.onSegmentUpdate?.(this.segments);
+        }
+        console.log('[DialogSession] segments 数量:', this.segments.length);
+        callbacks.onToolStart?.(data.tool_name);
+      },
+
+      onToolComplete: (data) => {
+        this.updateToolSegment(data.tool_name, 'success', data.result);
+        callbacks.onToolComplete?.(data.tool_name, data.result);
+        // 实时发送段落更新
+        callbacks.onSegmentUpdate?.(this.segments);
+      },
+
+      onToolError: (data) => {
+        this.updateToolSegment(data.tool_name, 'error', data.error);
+        callbacks.onToolError?.(data.tool_name, data.error);
+        // 实时发送段落更新
+        callbacks.onSegmentUpdate?.(this.segments);
+      },
+
+      onAskUser: async (data: AskUserEvent) => {
+        this.finalizeTextSegment();
+        this.segments.push({
+          type: 'question',
+          askId: data.askId,
+          question: data.question,
+          options: data.options
+        });
+        // 实时发送段落更新（包含问题）
+        callbacks.onSegmentUpdate?.(this.segments);
+        // 同时调用 onQuestion 用于更新状态栏等
+        callbacks.onQuestion?.(data.askId, data.question, data.options);
+        try {
+          await userInteractionManager.handleAskUser(data, this.taskId);
+        } catch (error) {
+          console.error('[DialogSession] 处理用户问题失败:', error);
+        }
+      },
+
+      onComplete: (data) => {
+        this.isActive = false;
+        this.finalizeTextSegment();
+        // 发送所有段落
+        callbacks.onComplete?.(this.segments);
+      },
+
+      onError: (data) => {
+        this.isActive = false;
+        callbacks.onError?.(data.message);
+      },
+
+      onWarning: (data) => {
+        callbacks.onNotification?.(`⚠️ ${data.message}`);
+      },
+
+      onNotification: (data) => {
+        callbacks.onNotification?.(data.message);
+      },
+
+      onOpen: () => {
+        console.log('[DialogSession] SSE 连接已建立');
+      },
+
+      onClose: () => {
+        console.log('[DialogSession] SSE 连接已关闭');
+        this.isActive = false;
+      }
+    };
+
+    try {
+      this.sseController = await startStreamDialog(request, sseCallbacks);
+    } catch (error) {
+      this.isActive = false;
+      const errorMsg = error instanceof Error ? error.message : '连接失败';
+      callbacks.onError?.(errorMsg);
+      throw error;
+    }
+  }
+
+  /**
+   * 中止当前对话
+   */
+  abort(): void {
+    if (this.sseController) {
+      this.sseController.abort();
+      this.sseController = null;
+    }
+    this.isActive = false;
+    userInteractionManager.cancelAll();
+  }
+
+  /**
+   * 提交用户回答
+   */
+  async submitAnswer(
+    askId: string,
+    selected?: string[],
+    customInput?: string
+  ): Promise<void> {
+    await userInteractionManager.receiveAnswer(askId, selected, customInput);
+  }
+}
+
+/**
+ * 全局对话会话管理
+ */
+class DialogManager {
+  private currentSession: DialogSession | null = null;
+
+  /**
+   * 创建新会话
+   */
+  createSession(extensionPath: string): DialogSession {
+    // 如果有活跃会话，先中止
+    if (this.currentSession?.active) {
+      this.currentSession.abort();
+    }
+    this.currentSession = new DialogSession(extensionPath);
+    return this.currentSession;
+  }
+
+  /**
+   * 获取当前会话
+   */
+  getCurrentSession(): DialogSession | null {
+    return this.currentSession;
+  }
+
+  /**
+   * 中止当前会话
+   */
+  abortCurrentSession(): void {
+    this.currentSession?.abort();
+  }
+}
+
+export const dialogManager = new DialogManager();

src/services/sseHandler.ts

@@ -0,0 +1,296 @@
+/**
+ * SSE 事件处理器
+ * 处理与后端的流式通信
+ * 使用 eventsource-parser + Node.js 原生 http 模块
+ */
+import * as http from 'http';
+import * as https from 'https';
+import { URL } from 'url';
+import { createParser, type EventSourceParser } from 'eventsource-parser';
+import { getApiUrl, getConfig } from '../config/settings';
+import type {
+  DialogRequest,
+  SSEEventType,
+  TextDeltaEvent,
+  ToolCallRequest,
+  AskUserEvent,
+  CompleteEvent,
+  ErrorEvent,
+  ToolStartEvent,
+  ToolCompleteEvent,
+  ToolErrorEvent,
+  WarningEvent,
+  NotificationEvent,
+  DepthUpdateEvent
+} from '../types/api';
+
+/**
+ * SSE 事件回调接口
+ */
+export interface SSECallbacks {
+  /** 收到文本增量 */
+  onTextDelta?: (data: TextDeltaEvent) => void;
+  /** 收到工具调用请求 */
+  onToolCall?: (data: ToolCallRequest) => void;
+  /** 工具开始执行 */
+  onToolStart?: (data: ToolStartEvent) => void;
+  /** 工具执行完成 */
+  onToolComplete?: (data: ToolCompleteEvent) => void;
+  /** 工具执行错误 */
+  onToolError?: (data: ToolErrorEvent) => void;
+  /** 收到用户提问 */
+  onAskUser?: (data: AskUserEvent) => void;
+  /** 对话完成 */
+  onComplete?: (data: CompleteEvent) => void;
+  /** 错误 */
+  onError?: (data: ErrorEvent) => void;
+  /** 警告 */
+  onWarning?: (data: WarningEvent) => void;
+  /** 通知 */
+  onNotification?: (data: NotificationEvent) => void;
+  /** 深度更新 */
+  onDepthUpdate?: (data: DepthUpdateEvent) => void;
+  /** 连接打开 */
+  onOpen?: () => void;
+  /** 连接关闭 */
+  onClose?: () => void;
+}
+
+/**
+ * SSE 会话控制器
+ */
+export class SSEController {
+  private request: http.ClientRequest | null = null;
+  private isConnected = false;
+  private isAborted = false;
+
+  /**
+   * 是否已连接
+   */
+  get connected(): boolean {
+    return this.isConnected;
+  }
+
+  /**
+   * 设置请求对象
+   */
+  setRequest(req: http.ClientRequest): void {
+    this.request = req;
+  }
+
+  /**
+   * 设置连接状态
+   */
+  setConnected(connected: boolean): void {
+    this.isConnected = connected;
+  }
+
+  /**
+   * 是否已中止
+   */
+  get aborted(): boolean {
+    return this.isAborted;
+  }
+
+  /**
+   * 中止当前连接
+   */
+  abort(): void {
+    if (this.request && !this.isAborted) {
+      this.isAborted = true;
+      this.request.destroy();
+      this.request = null;
+      this.isConnected = false;
+    }
+  }
+}
+
+/**
+ * 发起流式对话
+ * @param request 对话请求
+ * @param callbacks 事件回调
+ * @returns SSE 控制器（用于中止连接）
+ */
+export async function startStreamDialog(
+  request: DialogRequest,
+  callbacks: SSECallbacks
+): Promise<SSEController> {
+  const controller = new SSEController();
+
+  const urlString = getApiUrl('/api/dialog/stream');
+  const url = new URL(urlString);
+  const isHttps = url.protocol === 'https:';
+  const httpModule = isHttps ? https : http;
+
+  const body = JSON.stringify(request);
+
+  console.log(`[SSE] 开始流式对话: taskId=${request.taskId}, url=${urlString}`);
+
+  return new Promise((resolve, reject) => {
+    const options: http.RequestOptions = {
+      hostname: url.hostname,
+      port: url.port || (isHttps ? 443 : 80),
+      path: url.pathname + url.search,
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'Accept': 'text/event-stream',
+        'Cache-Control': 'no-cache',
+        'Content-Length': Buffer.byteLength(body)
+      }
+    };
+
+    const req = httpModule.request(options, (res) => {
+      // 检查响应状态
+      if (res.statusCode !== 200) {
+        let errorBody = '';
+        res.on('data', chunk => errorBody += chunk);
+        res.on('end', () => {
+          const error = new Error(`SSE 连接失败: ${res.statusCode} ${errorBody}`);
+          callbacks.onError?.({ message: error.message });
+          reject(error);
+        });
+        return;
+      }
+
+      // 连接成功
+      console.log('[SSE] 连接已建立');
+      controller.setConnected(true);
+      callbacks.onOpen?.();
+      resolve(controller);
+
+      // 创建 SSE 解析器
+      const parser = createParser({
+        onEvent: (event) => {
+          const eventType = event.event as SSEEventType;
+          const eventData = event.data;
+
+          if (!eventData) {
+            console.log(`[SSE] 收到空事件: ${eventType}`);
+            return;
+          }
+
+          try {
+            const data = JSON.parse(eventData);
+            console.log(`[SSE] 收到事件: ${eventType}`, data);
+
+            // 分发事件到对应回调
+            dispatchEvent(eventType, data, callbacks);
+          } catch (e) {
+            console.error(`[SSE] 解析事件数据失败: ${eventData}`, e);
+          }
+        }
+      });
+
+      // 设置编码
+      res.setEncoding('utf8');
+
+      // 处理数据流
+      res.on('data', (chunk: string) => {
+        if (!controller.aborted) {
+          console.log('[SSE] 收到原始数据块:', chunk.substring(0, 200));
+          parser.feed(chunk);
+        }
+      });
+
+      // 处理连接关闭
+      res.on('end', () => {
+        console.log('[SSE] 连接已关闭');
+        controller.setConnected(false);
+        callbacks.onClose?.();
+      });
+
+      // 处理错误
+      res.on('error', (err) => {
+        if (!controller.aborted) {
+          console.error('[SSE] 响应错误:', err);
+          controller.setConnected(false);
+          callbacks.onError?.({ message: err.message });
+        }
+      });
+    });
+
+    // 保存请求引用用于中止
+    controller.setRequest(req);
+
+    // 处理请求错误
+    req.on('error', (err) => {
+      if (!controller.aborted) {
+        console.error('[SSE] 请求错误:', err);
+        controller.setConnected(false);
+        callbacks.onError?.({ message: err.message });
+        reject(err);
+      }
+    });
+
+    // 处理超时
+    const { timeout } = getConfig();
+    req.setTimeout(timeout, () => {
+      if (!controller.aborted) {
+        console.error('[SSE] 请求超时');
+        controller.abort();
+        const error = new Error('请求超时');
+        callbacks.onError?.({ message: error.message });
+        reject(error);
+      }
+    });
+
+    // 发送请求体
+    req.write(body);
+    req.end();
+  });
+}
+
+/**
+ * 分发 SSE 事件到对应回调
+ */
+function dispatchEvent(
+  eventType: SSEEventType,
+  data: unknown,
+  callbacks: SSECallbacks
+): void {
+  switch (eventType) {
+    case 'text_delta':
+      callbacks.onTextDelta?.(data as TextDeltaEvent);
+      break;
+    case 'tool_call':
+      callbacks.onToolCall?.(data as ToolCallRequest);
+      break;
+    case 'tool_start':
+      callbacks.onToolStart?.(data as ToolStartEvent);
+      break;
+    case 'tool_complete':
+      callbacks.onToolComplete?.(data as ToolCompleteEvent);
+      break;
+    case 'tool_error':
+      callbacks.onToolError?.(data as ToolErrorEvent);
+      break;
+    case 'ask_user':
+      callbacks.onAskUser?.(data as AskUserEvent);
+      break;
+    case 'complete':
+      callbacks.onComplete?.(data as CompleteEvent);
+      break;
+    case 'error':
+      callbacks.onError?.(data as ErrorEvent);
+      break;
+    case 'warning':
+      callbacks.onWarning?.(data as WarningEvent);
+      break;
+    case 'notification':
+      callbacks.onNotification?.(data as NotificationEvent);
+      break;
+    case 'depth_update':
+      callbacks.onDepthUpdate?.(data as DepthUpdateEvent);
+      break;
+    default:
+      console.log(`[SSE] 未知事件类型: ${eventType}`, data);
+  }
+}
+
+/**
+ * 生成任务ID
+ */
+export function generateTaskId(): string {
+  return `task-${Date.now()}-${Math.random().toString(36).substring(2, 8)}`;
+}

src/services/toolExecutor.ts

@@ -0,0 +1,272 @@
+/**
+ * 工具执行器
+ * 接收后端的 tool_call 事件，执行本地工具，返回结果
+ */
+import * as vscode from 'vscode';
+import * as path from 'path';
+import * as os from 'os';
+import * as fs from 'fs';
+import { readFileContent, readDirectory } from '../utils/readFiles';
+import { createOrOverwriteFile } from '../utils/createFiles';
+import { generateVCD, checkIverilogAvailable } from '../utils/iverilogRunner';
+import {
+  submitToolResult,
+  createSuccessResult,
+  createBusinessErrorResult,
+  createSystemErrorResult
+} from './apiClient';
+import type {
+  ToolCallRequest,
+  ToolName,
+  FileReadArgs,
+  FileWriteArgs,
+  FileListArgs,
+  SyntaxCheckArgs,
+  SimulationArgs,
+  WaveformSummaryArgs
+} from '../types/api';
+
+/**
+ * 工具执行器上下文
+ */
+export interface ToolExecutorContext {
+  /** 扩展路径（用于 iverilog） */
+  extensionPath: string;
+  /** 工作区路径 */
+  workspacePath: string;
+}
+
+/**
+ * 执行工具调用
+ * @param request 工具调用请求
+ * @param context 执行上下文
+ */
+export async function executeToolCall(
+  request: ToolCallRequest,
+  context: ToolExecutorContext
+): Promise<void> {
+  const toolName = request.params.name as ToolName;
+  const args = request.params.arguments;
+  const callId = request.id;
+
+  console.log(`[ToolExecutor] 执行工具: ${toolName}, callId=${callId}`, args);
+
+  try {
+    let resultText: string;
+
+    switch (toolName) {
+      case 'file_read':
+        resultText = await executeFileRead(args as unknown as FileReadArgs);
+        break;
+      case 'file_write':
+        resultText = await executeFileWrite(args as unknown as FileWriteArgs);
+        break;
+      case 'file_list':
+        resultText = await executeFileList(args as unknown as FileListArgs);
+        break;
+      case 'syntax_check':
+        resultText = await executeSyntaxCheck(args as unknown as SyntaxCheckArgs, context);
+        break;
+      case 'simulation':
+        resultText = await executeSimulation(args as unknown as SimulationArgs, context);
+        break;
+      case 'waveform_summary':
+        resultText = await executeWaveformSummary(args as unknown as WaveformSummaryArgs);
+        break;
+      default:
+        throw new Error(`未知工具: ${toolName}`);
+    }
+
+    // 提交成功结果
+    const result = createSuccessResult(callId, resultText);
+    await submitToolResult(result);
+    console.log(`[ToolExecutor] 工具执行成功: ${toolName}, callId=${callId}`);
+
+  } catch (error) {
+    const errorMessage = error instanceof Error ? error.message : '未知错误';
+    console.error(`[ToolExecutor] 工具执行失败: ${toolName}, callId=${callId}`, error);
+
+    // 提交错误结果
+    const result = createBusinessErrorResult(callId, errorMessage);
+    await submitToolResult(result);
+  }
+}
+
+/**
+ * 执行 file_read 工具
+ */
+async function executeFileRead(args: FileReadArgs): Promise<string> {
+  const content = await readFileContent(args.path);
+  return content;
+}
+
+/**
+ * 执行 file_write 工具
+ */
+async function executeFileWrite(args: FileWriteArgs): Promise<string> {
+  await createOrOverwriteFile(args.path, args.content);
+  return `文件已写入: ${args.path}`;
+}
+
+/**
+ * 执行 file_list 工具
+ */
+async function executeFileList(args: FileListArgs): Promise<string> {
+  const dirPath = args.path || '.';
+  const extensions = args.extension ? [args.extension] : undefined;
+
+  const files = await readDirectory(dirPath, extensions);
+  const fileList = files.map(f => f.path).join('\n');
+
+  return fileList || '（目录为空）';
+}
+
+/**
+ * 执行 syntax_check 工具
+ * 将代码写入临时文件，调用 iverilog 检查语法
+ */
+async function executeSyntaxCheck(
+  args: SyntaxCheckArgs,
+  context: ToolExecutorContext
+): Promise<string> {
+  // 检查 iverilog 是否可用
+  const iverilogCheck = await checkIverilogAvailable(context.extensionPath);
+  if (!iverilogCheck.available) {
+    throw new Error(`iverilog 不可用: ${iverilogCheck.message}`);
+  }
+
+  // 创建临时文件
+  const tempDir = os.tmpdir();
+  const tempFile = path.join(tempDir, `iccoder_syntax_${Date.now()}.v`);
+
+  try {
+    // 写入代码到临时文件
+    fs.writeFileSync(tempFile, args.code, 'utf-8');
+
+    // 调用 iverilog 进行语法检查
+    const { spawn } = require('child_process');
+    const iverilogPath = getIverilogPath(context.extensionPath);
+
+    return new Promise((resolve, reject) => {
+      const child = spawn(iverilogPath, ['-t', 'null', tempFile], {
+        cwd: tempDir,
+        env: {
+          ...process.env,
+          IVERILOG_ROOT: path.join(context.extensionPath, 'tools', 'iverilog')
+        }
+      });
+
+      let stdout = '';
+      let stderr = '';
+
+      child.stdout.on('data', (data: Buffer) => {
+        stdout += data.toString();
+      });
+
+      child.stderr.on('data', (data: Buffer) => {
+        stderr += data.toString();
+      });
+
+      child.on('close', (code: number) => {
+        // 清理临时文件
+        try {
+          fs.unlinkSync(tempFile);
+        } catch (e) {
+          // 忽略清理错误
+        }
+
+        if (code === 0) {
+          resolve('语法检查通过，无错误。');
+        } else {
+          resolve(`语法检查发现错误:\n${stderr || stdout}`);
+        }
+      });
+
+      child.on('error', (error: Error) => {
+        try {
+          fs.unlinkSync(tempFile);
+        } catch (e) {
+          // 忽略清理错误
+        }
+        reject(error);
+      });
+    });
+
+  } catch (error) {
+    // 确保清理临时文件
+    try {
+      fs.unlinkSync(tempFile);
+    } catch (e) {
+      // 忽略
+    }
+    throw error;
+  }
+}
+
+/**
+ * 执行 simulation 工具
+ */
+async function executeSimulation(
+  args: SimulationArgs,
+  context: ToolExecutorContext
+): Promise<string> {
+  // 获取工作区路径
+  const workspaceFolders = vscode.workspace.workspaceFolders;
+  if (!workspaceFolders || workspaceFolders.length === 0) {
+    throw new Error('请先打开一个工作区');
+  }
+
+  const projectPath = workspaceFolders[0].uri.fsPath;
+
+  // 调用现有的 generateVCD 函数
+  const result = await generateVCD(projectPath, context.extensionPath);
+
+  if (result.success) {
+    let message = result.message;
+    if (result.stdout) {
+      message += `\n\n仿真输出:\n${result.stdout}`;
+    }
+    return message;
+  } else {
+    let errorMessage = result.message;
+    if (result.stderr) {
+      errorMessage += `\n\n错误输出:\n${result.stderr}`;
+    }
+    throw new Error(errorMessage);
+  }
+}
+
+/**
+ * 执行 waveform_summary 工具
+ * TODO: 实现 VCD 波形分析
+ */
+async function executeWaveformSummary(args: WaveformSummaryArgs): Promise<string> {
+  // TODO: 使用 vcdrom/vcd-stream 解析 VCD 文件
+  // 目前返回一个占位响应
+  return `波形分析功能暂未实现。\n请求参数:\n- VCD文件: ${args.vcdPath}\n- 信号: ${args.signals}\n- 检查点: ${args.checkpoints || '无'}`;
+}
+
+/**
+ * 获取 iverilog 路径
+ */
+function getIverilogPath(extensionPath: string): string {
+  const platform = process.platform;
+  if (platform === 'win32') {
+    return path.join(extensionPath, 'tools', 'iverilog', 'bin', 'iverilog.exe');
+  } else {
+    return path.join(extensionPath, 'tools', 'iverilog', 'bin', 'iverilog');
+  }
+}
+
+/**
+ * 创建工具执行器上下文
+ */
+export function createToolExecutorContext(extensionPath: string): ToolExecutorContext {
+  const workspaceFolders = vscode.workspace.workspaceFolders;
+  const workspacePath = workspaceFolders?.[0]?.uri.fsPath || '';
+
+  return {
+    extensionPath,
+    workspacePath
+  };
+}

src/services/userInteraction.ts

@@ -0,0 +1,147 @@
+/**
+ * 用户交互处理器
+ * 处理 ask_user 事件，通过 WebView 显示问题并收集用户回答
+ */
+import * as vscode from 'vscode';
+import { submitAnswer } from './apiClient';
+import type { AskUserEvent, AnswerRequest } from '../types/api';
+
+/**
+ * 待处理的用户问题
+ */
+interface PendingQuestion {
+  askId: string;
+  taskId: string;
+  question: string;
+  options: string[];
+  resolve: (answer: string) => void;
+  reject: (error: Error) => void;
+}
+
+/**
+ * 用户交互管理器
+ */
+export class UserInteractionManager {
+  private pendingQuestions = new Map<string, PendingQuestion>();
+  private webviewPanel: vscode.WebviewPanel | null = null;
+
+  /**
+   * 设置 WebView 面板（用于发送消息）
+   */
+  setWebviewPanel(panel: vscode.WebviewPanel): void {
+    this.webviewPanel = panel;
+  }
+
+  /**
+   * 处理 ask_user 事件
+   * @param event ask_user 事件数据
+   * @param taskId 当前任务ID
+   */
+  async handleAskUser(event: AskUserEvent, taskId: string): Promise<void> {
+    const { askId, question, options } = event;
+
+    console.log(`[UserInteraction] 收到问题: askId=${askId}, question=${question}`);
+
+    // 注意：问题显示已经通过 dialogService 的 onSegmentUpdate 统一处理
+    // 这里不再单独发送 showQuestion 命令，避免重复显示
+
+    // 创建 Promise 等待用户回答
+    return new Promise((resolve, reject) => {
+      this.pendingQuestions.set(askId, {
+        askId,
+        taskId,
+        question,
+        options,
+        resolve: (answer: string) => {
+          this.submitUserAnswer(askId, taskId, answer)
+            .then(() => resolve())
+            .catch(reject);
+        },
+        reject
+      });
+
+      // 设置超时（5分钟）
+      setTimeout(() => {
+        if (this.pendingQuestions.has(askId)) {
+          this.pendingQuestions.delete(askId);
+          reject(new Error('用户回答超时'));
+        }
+      }, 300000);
+    });
+  }
+
+  /**
+   * 处理用户提交的回答（从 WebView 调用）
+   * @param askId 问题ID
+   * @param selected 选中的选项
+   * @param customInput 自定义输入
+   */
+  async receiveAnswer(
+    askId: string,
+    selected?: string[],
+    customInput?: string
+  ): Promise<void> {
+    const pending = this.pendingQuestions.get(askId);
+    if (!pending) {
+      console.warn(`[UserInteraction] 问题不存在或已超时: askId=${askId}`);
+      return;
+    }
+
+    // 构建答案
+    const answer = customInput || selected?.join(', ') || '';
+
+    console.log(`[UserInteraction] 收到用户回答: askId=${askId}, answer=${answer}`);
+
+    // 移除待处理问题
+    this.pendingQuestions.delete(askId);
+
+    // 触发 resolve
+    pending.resolve(answer);
+  }
+
+  /**
+   * 提交用户回答到后端
+   */
+  private async submitUserAnswer(
+    askId: string,
+    taskId: string,
+    answer: string
+  ): Promise<void> {
+    const request: AnswerRequest = {
+      askId,
+      taskId,
+      customInput: answer
+    };
+
+    try {
+      const response = await submitAnswer(request);
+      if (!response.success) {
+        throw new Error(response.error || '提交回答失败');
+      }
+      console.log(`[UserInteraction] 回答已提交: askId=${askId}`);
+    } catch (error) {
+      console.error(`[UserInteraction] 提交回答失败: askId=${askId}`, error);
+      throw error;
+    }
+  }
+
+  /**
+   * 取消所有待处理的问题
+   */
+  cancelAll(): void {
+    for (const [askId, pending] of this.pendingQuestions) {
+      pending.reject(new Error('用户交互已取消'));
+    }
+    this.pendingQuestions.clear();
+  }
+
+  /**
+   * 检查是否有待处理的问题
+   */
+  hasPendingQuestions(): boolean {
+    return this.pendingQuestions.size > 0;
+  }
+}
+
+// 全局实例
+export const userInteractionManager = new UserInteractionManager();

src/types/api.ts

@@ -0,0 +1,243 @@
+/**
+ * 后端 API 类型定义
+ * 对应后端 IC Coder Backend 的接口格式
+ */
+
+// ============== 对话请求/响应 ==============
+
+/**
+ * 对话请求
+ * POST /api/dialog/stream
+ */
+export interface DialogRequest {
+  /** 任务ID（用于记忆隔离） */
+  taskId: string;
+  /** 用户消息 */
+  message: string;
+  /** 用户ID */
+  userId: string;
+  /** 工具模式 */
+  toolMode: 'ASK' | 'AGENT';
+}
+
+// ============== SSE 事件类型 ==============
+
+/** SSE 事件类型枚举 */
+export type SSEEventType =
+  | 'text_delta'      // 文本增量
+  | 'tool_call'       // 客户端工具调用请求
+  | 'tool_start'      // 工具开始执行
+  | 'tool_complete'   // 工具执行完成
+  | 'tool_error'      // 工具执行错误
+  | 'ask_user'        // 向用户提问
+  | 'complete'        // 对话完成
+  | 'error'           // 错误
+  | 'warning'         // 警告
+  | 'notification'    // 通知
+  | 'depth_update';   // 深度更新
+
+/** text_delta 事件数据 */
+export interface TextDeltaEvent {
+  text: string;
+}
+
+/** tool_start 事件数据 */
+export interface ToolStartEvent {
+  tool_name: string;
+  tool_input: unknown;
+}
+
+/** tool_complete 事件数据 */
+export interface ToolCompleteEvent {
+  tool_name: string;
+  result: string;
+}
+
+/** tool_error 事件数据 */
+export interface ToolErrorEvent {
+  tool_name: string;
+  error: string;
+}
+
+/** ask_user 事件数据 */
+export interface AskUserEvent {
+  askId: string;
+  question: string;
+  options: string[];
+}
+
+/** complete 事件数据 */
+export interface CompleteEvent {
+  status: string;
+  finish_reason: string;
+}
+
+/** error 事件数据 */
+export interface ErrorEvent {
+  message: string;
+}
+
+/** warning 事件数据 */
+export interface WarningEvent {
+  message: string;
+}
+
+/** notification 事件数据 */
+export interface NotificationEvent {
+  message: string;
+}
+
+/** depth_update 事件数据 */
+export interface DepthUpdateEvent {
+  depth: number;
+}
+
+// ============== 工具调用协议 (MCP 格式) ==============
+
+/**
+ * 工具调用请求（MCP格式）
+ * 后端通过 SSE tool_call 事件推送
+ */
+export interface ToolCallRequest {
+  /** JSON-RPC版本，固定为"2.0" */
+  jsonrpc: '2.0';
+  /** 请求ID，用于匹配响应 */
+  id: number;
+  /** 方法名，固定为"tools/call" */
+  method: 'tools/call';
+  /** 调用参数 */
+  params: {
+    /** 工具名称 */
+    name: string;
+    /** 工具参数 */
+    arguments: Record<string, unknown>;
+  };
+}
+
+/**
+ * 工具执行结果（MCP格式）
+ * POST /api/tool/result
+ */
+export interface ToolCallResult {
+  /** JSON-RPC版本 */
+  jsonrpc: '2.0';
+  /** 请求ID，与ToolCallRequest.id对应 */
+  id: number;
+  /** 执行结果（与error互斥） */
+  result?: ToolResultContent;
+  /** 错误信息（与result互斥） */
+  error?: ToolResultError;
+}
+
+/** 工具执行结果内容 */
+export interface ToolResultContent {
+  /** 内容列表 */
+  content: ContentItem[];
+  /** 是否为错误结果（业务错误，如编译失败） */
+  isError: boolean;
+}
+
+/** 内容项 */
+export interface ContentItem {
+  /** 内容类型：text, image, resource */
+  type: string;
+  /** 文本内容 */
+  text: string;
+}
+
+/** 工具系统错误 */
+export interface ToolResultError {
+  /** 错误码 */
+  code: number;
+  /** 错误消息 */
+  message: string;
+}
+
+// ============== 用户回答 ==============
+
+/**
+ * 用户回答请求
+ * POST /api/task/answer
+ */
+export interface AnswerRequest {
+  /** 问题ID */
+  askId: string;
+  /** 任务ID */
+  taskId: string;
+  /** 选中的选项列表 */
+  selected?: string[];
+  /** 自定义输入内容 */
+  customInput?: string;
+}
+
+/** 用户回答响应 */
+export interface AnswerResponse {
+  success: boolean;
+  message?: string;
+  error?: string;
+}
+
+// ============== 工具结果响应 ==============
+
+/** 工具结果响应 */
+export interface ToolResultResponse {
+  success: boolean;
+  message?: string;
+  error?: string;
+}
+
+// ============== 辅助类型 ==============
+
+/** 后端工具名称 */
+export type ToolName =
+  | 'file_read'
+  | 'file_write'
+  | 'file_list'
+  | 'syntax_check'
+  | 'simulation'
+  | 'waveform_summary';
+
+/** file_read 工具参数 */
+export interface FileReadArgs {
+  path: string;
+}
+
+/** file_write 工具参数 */
+export interface FileWriteArgs {
+  path: string;
+  content: string;
+}
+
+/** file_list 工具参数 */
+export interface FileListArgs {
+  path?: string;
+  extension?: string;
+}
+
+/** syntax_check 工具参数 */
+export interface SyntaxCheckArgs {
+  code: string;
+}
+
+/** simulation 工具参数 */
+export interface SimulationArgs {
+  rtlPath: string;
+  tbPath: string;
+  duration?: string;
+}
+
+/** waveform_summary 工具参数 */
+export interface WaveformSummaryArgs {
+  vcdPath: string;
+  signals: string;
+  checkpoints?: string;
+}
+
+/** 工具参数联合类型 */
+export type ToolArgs =
+  | FileReadArgs
+  | FileWriteArgs
+  | FileListArgs
+  | SyntaxCheckArgs
+  | SimulationArgs
+  | WaveformSummaryArgs;

src/types/chatHistory.ts

@@ -56,6 +56,7 @@ export interface AiMessage extends BaseMessage {
   text?: string;
   toolExecutionRequests?: ToolExecutionRequest[];
   thinking?: string;
+  segments?: any[]; // 保存完整的 segments 信息用于还原显示
 }
 
 /**

src/utils/chatHistoryManager.ts

@@ -8,7 +8,8 @@ import {
   MessageType,
   UserMessage,
   AiMessage,
-  SystemMessage
+  SystemMessage,
+  ToolExecutionResultMessage
 } from '../types/chatHistory';
 
 /**
@@ -20,6 +21,8 @@ export class ChatHistoryManager {
   private baseDir: string; // ~/.iccoder
   private currentTaskId: string | null = null;
   private currentProjectPath: string | null = null;
+  // 存储每个面板的任务信息（taskId 和 projectPath）
+  private panelTaskMap: Map<string, { taskId: string; projectPath: string }> = new Map();
 
   private constructor() {
     // 设置存储路径: ~/.iccoder
@@ -33,12 +36,13 @@ export class ChatHistoryManager {
    * 规则：
    * - 替换 \ 和 / 为 --
    * - 替换 : 为空
-   * 例如：C:\Users\admin\Documents\Project -> C--Users-admin-Documents-Project
+   * 例如：C:\Users\admin\Documents\Project -> C--Users--admin--Documents--Project
    */
   private encodeProjectPath(projectPath: string): string {
     return projectPath
-      .replace(/:/g, '') // 移除冒号
+      .replace(/\\/g, '--') // 替换反斜杠为 --
-      .replace(/[/\\]/g, '--'); // 替换斜杠为 --
+      .replace(/\//g, '--') // 替换正斜杠为 --
+      .replace(/:/g, ''); // 移除冒号
   }
 
   /**
@@ -107,6 +111,43 @@ export class ChatHistoryManager {
     return ChatHistoryManager.instance;
   }
 
+  /**
+   * 为面板设置任务ID
+   */
+  public setPanelTask(panelId: string, taskId: string, projectPath: string): void {
+    this.panelTaskMap.set(panelId, { taskId, projectPath });
+    this.currentTaskId = taskId;
+    this.currentProjectPath = projectPath;
+  }
+
+  /**
+   * 获取面板的任务ID
+   */
+  public getPanelTask(panelId: string): string | null {
+    const taskInfo = this.panelTaskMap.get(panelId);
+    return taskInfo ? taskInfo.taskId : null;
+  }
+
+  /**
+   * 切换到指定面板的任务上下文
+   */
+  public switchToPanelTask(panelId: string): boolean {
+    const taskInfo = this.panelTaskMap.get(panelId);
+    if (taskInfo) {
+      this.currentTaskId = taskInfo.taskId;
+      this.currentProjectPath = taskInfo.projectPath;
+      return true;
+    }
+    return false;
+  }
+
+  /**
+   * 移除面板的任务映射
+   */
+  public removePanelTask(panelId: string): void {
+    this.panelTaskMap.delete(panelId);
+  }
+
   /**
    * 创建新任务
    */
@@ -264,17 +305,11 @@ export class ChatHistoryManager {
   }
 
   /**
-   * 确保有当前任务，如果没有则自动创建
+   * 确保有当前任务，如果没有则抛出错误
    */
   private async ensureCurrentTask(): Promise<void> {
     if (!this.currentTaskId || !this.currentProjectPath) {
-      // 获取当前工作区路径
+      throw new Error("没有当前任务上下文，请确保已正确初始化面板任务");
-      const workspacePath = vscode.workspace.workspaceFolders?.[0]?.uri.fsPath;
-      if (workspacePath) {
-        await this.createTask(workspacePath, "默认任务");
-      } else {
-        throw new Error("没有打开的工作区，无法创建任务");
-      }
     }
   }
 
@@ -300,14 +335,15 @@ export class ChatHistoryManager {
   /**
    * 添加AI消息
    */
-  public async addAiMessage(text: string, toolRequests?: any[]): Promise<void> {
+  public async addAiMessage(text: string, toolRequests?: any[], segments?: any[]): Promise<void> {
     await this.ensureCurrentTask();
     const messages = await this.loadConversation();
 
     const aiMessage: AiMessage = {
       type: MessageType.AI,
       text,
-      toolExecutionRequests: toolRequests
+      toolExecutionRequests: toolRequests,
+      segments // 保存完整的 segments 信息
     };
 
     messages.push(aiMessage);
@@ -333,6 +369,24 @@ export class ChatHistoryManager {
     await this.saveConversation(messages);
   }
 
+  /**
+   * 添加工具执行结果消息
+   */
+  public async addToolExecutionResult(id: string, toolName: string, result: string): Promise<void> {
+    await this.ensureCurrentTask();
+    const messages = await this.loadConversation();
+
+    const toolResultMessage: ToolExecutionResultMessage = {
+      type: MessageType.TOOL_EXECUTION_RESULT,
+      id,
+      toolName,
+      text: result
+    };
+
+    messages.push(toolResultMessage);
+    await this.saveConversation(messages);
+  }
+
   /**
    * 记录对话轮次元数据
    */
@@ -450,6 +504,20 @@ export class ChatHistoryManager {
             tasks.push(JSON.parse(data));
           } catch (error) {
             console.error(`加载任务 ${taskId} 失败:`, error);
+            // 跳过无效的任务目录
+            // 尝试清理空目录
+            try {
+              const taskDirUri = vscode.Uri.file(path.join(projectDir, taskId));
+              const taskDirEntries = await vscode.workspace.fs.readDirectory(taskDirUri);
+              if (taskDirEntries.length === 0) {
+                // 目录为空，删除它
+                await vscode.workspace.fs.delete(taskDirUri, { recursive: false });
+                console.log(`已清理空任务目录: ${taskId}`);
+              }
+            } catch (cleanupError) {
+              // 清理失败，忽略错误
+              console.warn(`清理任务目录 ${taskId} 失败:`, cleanupError);
+            }
           }
         }
       }
@@ -494,4 +562,132 @@ export class ChatHistoryManager {
   public getBaseDir(): string {
     return this.baseDir;
   }
+
+  /**
+   * 加载指定任务的会话内容
+   * @param projectPath 项目路径
+   * @param taskId 任务ID
+   * @returns 任务会话内容，如果任务不存在则返回null
+   */
+  public async loadTaskSession(projectPath: string, taskId: string): Promise<TaskSession | null> {
+    const taskDir = this.getTaskDir(projectPath, taskId);
+    const metaPath = path.join(taskDir, 'meta.json');
+
+    try {
+      // 检查任务是否存在
+      const metaUri = vscode.Uri.file(metaPath);
+      const metaContent = await vscode.workspace.fs.readFile(metaUri);
+      const meta: TaskMeta = JSON.parse(Buffer.from(metaContent).toString('utf-8'));
+
+      // 读取会话内容
+      const conversationPath = path.join(taskDir, 'conversation.json');
+      let messages: ChatMessage[] = [];
+      try {
+        const conversationUri = vscode.Uri.file(conversationPath);
+        const conversationContent = await vscode.workspace.fs.readFile(conversationUri);
+        messages = JSON.parse(Buffer.from(conversationContent).toString('utf-8'));
+      } catch {
+        // 会话文件不存在，使用空数组
+      }
+
+      // 读取会话元数据
+      const conversationMetaPath = path.join(taskDir, 'conversation_meta.jsonl');
+      let conversationMeta: ConversationMeta[] = [];
+      try {
+        const metaUri = vscode.Uri.file(conversationMetaPath);
+        const content = await vscode.workspace.fs.readFile(metaUri);
+        const data = Buffer.from(content).toString('utf-8');
+        conversationMeta = data
+          .split('\n')
+          .filter(line => line.trim())
+          .map(line => JSON.parse(line));
+      } catch {
+        // 元数据文件不存在，使用空数组
+      }
+
+      return {
+        meta,
+        messages,
+        conversationMeta
+      };
+    } catch (error) {
+      console.error(`加载任务 ${taskId} 的会话失败:`, error);
+      return null;
+    }
+  }
+
+  /**
+   * 获取会话历史列表（支持分页）
+   * 返回格式：{ id: taskId, title: 第一句用户消息, timestamp: 创建时间 }
+   * @param projectPath 项目路径
+   * @param offset 偏移量（从第几条开始，默认0）
+   * @param limit 每页数量（默认10条）
+   * @returns { items: 历史列表, total: 总数, hasMore: 是否还有更多 }
+   */
+  public async getConversationHistoryList(
+    projectPath: string,
+    offset: number = 0,
+    limit: number = 10
+  ): Promise<{
+    items: Array<{ id: string; title: string; timestamp: string }>;
+    total: number;
+    hasMore: boolean;
+  }> {
+    const tasks = await this.listProjectTasks(projectPath);
+    const total = tasks.length;
+    const historyList: Array<{ id: string; title: string; timestamp: string }> = [];
+
+    // 计算分页范围
+    const start = offset;
+    const end = Math.min(offset + limit, total);
+    const limitedTasks = tasks.slice(start, end);
+
+    for (const task of limitedTasks) {
+      // 读取该任务的 conversation.json 获取第一句用户消息
+      const taskDir = this.getTaskDir(task.projectPath, task.taskId);
+      const conversationPath = path.join(taskDir, 'conversation.json');
+
+      try {
+        const uri = vscode.Uri.file(conversationPath);
+        const content = await vscode.workspace.fs.readFile(uri);
+        const data = Buffer.from(content).toString('utf-8');
+        const messages: ChatMessage[] = JSON.parse(data);
+
+        // 找到第一条用户消息
+        const firstUserMessage = messages.find(msg => msg.type === MessageType.USER) as UserMessage | undefined;
+
+        let title = '未命名会话';
+        if (firstUserMessage && firstUserMessage.contents && firstUserMessage.contents.length > 0) {
+          const textContent = firstUserMessage.contents.find(c => c.type === 'TEXT');
+          if (textContent && 'text' in textContent) {
+            // 截取前50个字符作为标题
+            title = textContent.text.length > 50
+              ? textContent.text.substring(0, 50) + '...'
+              : textContent.text;
+          }
+        }
+
+        historyList.push({
+          id: task.taskId,
+          title,
+          timestamp: task.createdAt
+        });
+      } catch (error) {
+        console.error(`读取任务 ${task.taskId} 的会话历史失败:`, error);
+        // 如果读取失败，使用任务名称作为标题
+        historyList.push({
+          id: task.taskId,
+          title: task.taskName || '未命名会话',
+          timestamp: task.createdAt
+        });
+      }
+    }
+
+    // 返回分页结果
+    return {
+      items: historyList,
+      total,
+      hasMore: end < total
+    };
+  }
 }

src/utils/messageHandler.ts

@@ -15,6 +15,15 @@ import {
   checkIverilogAvailable,
 } from "./iverilogRunner";
 import { ChatHistoryManager } from "./chatHistoryManager";
+import { dialogManager, DialogSession } from "../services/dialogService";
+import { userInteractionManager } from "../services/userInteraction";
+import { healthCheck } from "../services/apiClient";
+
+/** 是否使用后端服务（可通过配置控制） */
+let useBackendService = true;
+
+/** 当前对话会话 */
+let currentSession: DialogSession | null = null;
 
 /**
  * 处理用户消息
@@ -26,33 +35,53 @@ export async function handleUserMessage(
 ) {
   console.log("收到用户消息:", text);
 
-  // 记录用户消息到历史
+  // 记录用户消息到历史（允许失败，不阻塞主流程）
+  try {
     const historyManager = ChatHistoryManager.getInstance();
     await historyManager.addUserMessage(text);
+  } catch (error) {
+    console.warn("记录消息历史失败（可能没有打开工作区）:", error);
+  }
 
-  // 检查是否是 VCD 生成命令
+  // 设置 WebView 面板用于用户交互
+  userInteractionManager.setWebviewPanel(panel);
+
+  // 检查是否是 VCD 生成命令（本地处理）
   if (isVCDGenerationCommand(text)) {
     await handleVCDGeneration(panel, extensionPath || "");
     return;
   }
 
-  // 检查是否是文件操作命令
+  // 检查是否是文件操作命令（本地处理）
   const fileOperation = parseFileOperation(text);
-
-  console.log("解析结果:", fileOperation);
-
   if (fileOperation) {
     console.log("执行文件操作:", fileOperation.type, fileOperation.filePath);
     await handleFileOperation(panel, fileOperation);
     return;
   }
 
-  // 普通消息处理
+  // 尝试使用后端服务
-  console.log("作为普通消息处理");
+  if (useBackendService && extensionPath) {
+    try {
+      await handleUserMessageWithBackend(panel, text, extensionPath);
+      return;
+    } catch (error) {
+      console.error("后端服务不可用，回退到本地模式:", error);
+      // 后端不可用时，使用本地模拟回复
+    }
+  }
+
+  // 本地模拟回复（后端不可用时的 fallback）
+  console.log("使用本地模拟回复");
   const reply = getMockReply(text);
 
-  // 记录助手回复到历史
+  // 记录AI回复到历史（允许失败）
+  try {
+    const historyManager = ChatHistoryManager.getInstance();
     await historyManager.addAiMessage(reply);
+  } catch (error) {
+    console.warn("记录AI回复历史失败:", error);
+  }
 
   setTimeout(() => {
     panel.webview.postMessage({
@@ -62,6 +91,141 @@ export async function handleUserMessage(
   }, 500);
 }
 
+/**
+ * 使用后端服务处理用户消息
+ */
+async function handleUserMessageWithBackend(
+  panel: vscode.WebviewPanel,
+  text: string,
+  extensionPath: string
+): Promise<void> {
+  // 创建或复用会话
+  if (!currentSession || !currentSession.active) {
+    currentSession = dialogManager.createSession(extensionPath);
+  }
+
+  const historyManager = ChatHistoryManager.getInstance();
+
+  // 显示状态栏
+  panel.webview.postMessage({
+    command: "updateStatus",
+    text: "思考中...",
+    type: "thinking",
+  });
+
+  return new Promise((resolve, reject) => {
+    currentSession!.sendMessage(text, {
+      onText: (fullText, isStreaming) => {
+        // 不再单独处理文本，统一通过 onSegmentUpdate 处理
+      },
+
+      onSegmentUpdate: (segments) => {
+        // 实时发送段落更新，按后端返回顺序展示
+        panel.webview.postMessage({
+          command: "updateSegments",
+          segments: segments,
+        });
+      },
+
+      onToolStart: (toolName) => {
+        // 更新状态栏
+        panel.webview.postMessage({
+          command: "updateStatus",
+          text: `正在执行 ${toolName}...`,
+          type: "working",
+        });
+      },
+
+      onToolComplete: (toolName, result) => {
+        // 工具完成，不需要单独处理，通过 onSegmentUpdate 统一更新
+      },
+
+      onToolError: (toolName, error) => {
+        // 工具错误，不需要单独处理，通过 onSegmentUpdate 统一更新
+      },
+
+      onQuestion: (askId, question, options) => {
+        // 只更新状态栏，问题显示由 onSegmentUpdate 统一处理
+        panel.webview.postMessage({
+          command: "updateStatus",
+          text: "等待用户回答...",
+          type: "working",
+        });
+      },
+
+      onComplete: async (segments) => {
+        // 隐藏状态栏
+        panel.webview.postMessage({
+          command: "hideStatus",
+        });
+
+        // 最后一次发送完整的段落
+        console.log('[MessageHandler] 对话完成, 段落数:', segments.length);
+        console.log('[MessageHandler] segments 内容:', JSON.stringify(segments));
+
+        const result = await panel.webview.postMessage({
+          command: "updateSegments",
+          segments: segments,
+          isComplete: true,
+        });
+        console.log('[MessageHandler] postMessage 返回值:', result);
+
+        // 保存完整的 segments 到历史记录
+        try {
+          // 将完整的 segments 保存到一条 AI 消息中
+          // 这样加载时可以完整还原对话样式
+          const textContent = segments
+            .filter(s => s.type === 'text' && s.content)
+            .map(s => s.content)
+            .join('\n');
+
+          await historyManager.addAiMessage(textContent, undefined, segments);
+        } catch (error) {
+          console.warn("保存AI响应历史失败:", error);
+        }
+
+        resolve();
+      },
+
+      onError: (message) => {
+        panel.webview.postMessage({
+          command: "hideLoading",
+        });
+        panel.webview.postMessage({
+          command: "receiveMessage",
+          text: `❌ 错误: ${message}`,
+        });
+        reject(new Error(message));
+      },
+
+      onNotification: (message) => {
+        vscode.window.showInformationMessage(message);
+      },
+    });
+  });
+}
+
+/**
+ * 处理用户回答（从 WebView 调用）
+ */
+export async function handleUserAnswer(
+  askId: string,
+  selected?: string[],
+  customInput?: string
+): Promise<void> {
+  if (currentSession) {
+    await currentSession.submitAnswer(askId, selected, customInput);
+  }
+}
+
+/**
+ * 中止当前对话
+ */
+export function abortCurrentDialog(): void {
+  dialogManager.abortCurrentSession();
+  currentSession = null;
+}
+
 /**
  * 解析文件操作命令
  */

src/views/ICViewProvider.ts

@@ -5,12 +5,17 @@ import {
   insertCodeToEditor,
   handleReadFile,
   handleCreateFile,
+  handleUpdateFile,
+  handleRenameFile,
+  handleReplaceInFile,
+  handleUserAnswer,
+  abortCurrentDialog,
 } from "../utils/messageHandler";
 
 /**
  * 创建并显示IC 侧边栏视图
  */
-export function showICHelperPanel(content: vscode.ExtensionContext) {
+export function showICHelperPanel(context: vscode.ExtensionContext) {
   // 创建WebView面板
   const panel = vscode.window.createWebviewPanel(
     "icCoder", // 面板ID
@@ -19,20 +24,20 @@ export function showICHelperPanel(content: vscode.ExtensionContext) {
     {
       enableScripts: true,
       retainContextWhenHidden: true,
-      localResourceRoots: [vscode.Uri.joinPath(content.extensionUri, "media")],
+      localResourceRoots: [vscode.Uri.joinPath(context.extensionUri, "media")],
     }
   );
 
   // 设置标签页图标
   panel.iconPath = vscode.Uri.joinPath(
-    content.extensionUri,
+    context.extensionUri,
     "media",
     "图案（方底）.png"
   );
 
   // 获取页面内图标URI
   const iconUri = panel.webview.asWebviewUri(
-    vscode.Uri.joinPath(content.extensionUri, "media", "图案（方底）.png")
+    vscode.Uri.joinPath(context.extensionUri, "media", "图案（方底）.png")
   );
   // 设置HTML内容
   panel.webview.html = getWebviewContent(iconUri.toString());
@@ -42,11 +47,20 @@ export function showICHelperPanel(content: vscode.ExtensionContext) {
     (message) => {
       switch (message.command) {
         case "sendMessage":
-          handleUserMessage(panel, message.text);
+          handleUserMessage(panel, message.text, context.extensionPath);
           break;
         case "readFile":
           handleReadFile(panel, message.filePath);
           break;
+        case "updateFile":
+          handleUpdateFile(panel, message.filePath, message.content);
+          break;
+        case "renameFile":
+          handleRenameFile(panel, message.oldPath, message.newPath);
+          break;
+        case "replaceInFile":
+          handleReplaceInFile(panel, message.filePath, message.searchText, message.replaceText);
+          break;
         case "insertCode":
           insertCodeToEditor(message.code);
           break;
@@ -61,10 +75,18 @@ export function showICHelperPanel(content: vscode.ExtensionContext) {
         case "showInfo":
           vscode.window.showInformationMessage(message.text);
           break;
+        // 新增：处理用户回答
+        case "submitAnswer":
+          handleUserAnswer(message.askId, message.selected, message.customInput);
+          break;
+        // 新增：中止对话
+        case "abortDialog":
+          abortCurrentDialog();
+          break;
       }
     },
     undefined,
-    content.subscriptions
+    context.subscriptions
   );
 }
 

src/views/agentModeSelector.ts

@@ -0,0 +1,162 @@
+/**
+ * 模式选择器组件
+ * 提供 Agent/Ask/Auto 三种模式的选择功能
+ */
+
+/**
+ * 获取模式选择器的 HTML 内容
+ */
+export function getModeSelectorContent(): string {
+  return `
+    <div class="tooltip">
+      <div class="mode-select" id="modeSelect">
+        <div class="mode-trigger" onclick="toggleModeDropdown()">
+          <span class="mode-value" id="modeValue">Agent</span>
+          <svg class="mode-arrow" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
+            <path d="M507.8 727.728a30.016 30.016 0 0 1-21.288-8.824L231.104 463.496a30.088 30.088 0 0 1 0-42.568 30.088 30.088 0 0 1 42.568 0l234.128 234.128 234.16-234.128a30.088 30.088 0 0 1 42.568 0 30.088 30.088 0 0 1 0 42.568L529.08 718.904a30 30 0 0 1-21.28 8.824z" fill="#8a8a8a"/>
+          </svg>
+        </div>
+        <div class="mode-dropdown" id="modeDropdown">
+          <div class="mode-option" data-value="agent" onclick="selectMode('agent', 'Agent')">Agent</div>
+          <div class="mode-option" data-value="ask" onclick="selectMode('ask', 'Ask')">Ask</div>
+          <div class="mode-option" data-value="auto" onclick="selectMode('auto', 'Auto')">Auto</div>
+        </div>
+      </div>
+      <span class="tooltiptext">切换模式</span>
+    </div>
+  `;
+}
+
+/**
+ * 获取模式选择器的样式
+ */
+export function getModeSelectorStyles(): string {
+  return `
+    /* 模式选择器样式 */
+    .mode-select {
+      position: relative;
+      user-select: none;
+    }
+    .mode-trigger {
+      display: flex;
+      align-items: center;
+      gap: 6px;
+      padding: 4px 8px;
+      background: var(--vscode-input-background);
+      color: var(--vscode-foreground);
+      border: none;
+      border-radius: 4px;
+      cursor: pointer;
+      font-size: 12px;
+      transition: background 0.2s ease;
+    }
+    .mode-trigger:hover {
+      background: var(--vscode-list-hoverBackground);
+    }
+    .mode-value {
+      white-space: nowrap;
+    }
+    .mode-arrow {
+      width: 12px;
+      height: 12px;
+      flex-shrink: 0;
+      transition: transform 0.2s ease;
+    }
+    .mode-select.active .mode-arrow {
+      transform: rotate(180deg);
+    }
+    .mode-dropdown {
+      position: absolute;
+      bottom: calc(100% + 2px);
+      left: 0;
+      min-width: 100%;
+      background: var(--vscode-dropdown-background);
+      border: 1px solid var(--vscode-dropdown-border);
+      border-radius: 4px;
+      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+      z-index: 1100;
+      display: none;
+      overflow: hidden;
+    }
+    .mode-select.active .mode-dropdown {
+      display: block;
+    }
+    /* 模式选择器的选项样式 */
+    .mode-option {
+      padding: 6px 12px;
+      font-size: 12px;
+      cursor: pointer;
+      transition: background 0.2s ease;
+      white-space: nowrap;
+    }
+    .mode-option:hover {
+      background: rgba(128, 128, 128, 0.3);
+    }
+    .mode-option.selected {
+      background: rgba(128, 128, 128, 0.5);
+      color: var(--vscode-foreground);
+    }
+  `;
+}
+
+/**
+ * 获取模式选择器的脚本
+ */
+export function getModeSelectorScript(): string {
+  return `
+    // 模式选择器相关变量
+    let currentMode = 'agent';
+
+    // 切换模式下拉框显示/隐藏
+    function toggleModeDropdown() {
+      const modeSelect = document.getElementById('modeSelect');
+      const modelSelect = document.getElementById('modelSelect');
+      if (modeSelect) {
+        modeSelect.classList.toggle('active');
+        // 关闭模型下拉框
+        if (modelSelect) {
+          modelSelect.classList.remove('active');
+        }
+      }
+    }
+
+    // 选择模式
+    function selectMode(value, label) {
+      currentMode = value;
+      const modeValue = document.getElementById('modeValue');
+      if (modeValue) {
+        modeValue.textContent = label;
+      }
+
+      // 更新选中状态
+      const options = document.querySelectorAll('.mode-option');
+      options.forEach(option => {
+        if (option.getAttribute('data-value') === value) {
+          option.classList.add('selected');
+        } else {
+          option.classList.remove('selected');
+        }
+      });
+
+      // 关闭下拉框
+      const modeSelect = document.getElementById('modeSelect');
+      if (modeSelect) {
+        modeSelect.classList.remove('active');
+      }
+    }
+
+    // 获取当前模式
+    function getCurrentMode() {
+      return currentMode;
+    }
+
+    // 点击外部关闭模式下拉框
+    document.addEventListener('click', (event) => {
+      const modeSelect = document.getElementById('modeSelect');
+
+      if (modeSelect && !modeSelect.contains(event.target)) {
+        modeSelect.classList.remove('active');
+      }
+    });
+  `;
+}

src/views/contextButton.ts

@@ -0,0 +1,71 @@
+/**
+ * 添加上下文按钮组件
+ */
+
+/**
+ * 获取添加上下文按钮的 HTML 内容
+ */
+export function getContextButtonContent(): string {
+  return `
+    <div class="tooltip">
+      <button class="add-context-button" onclick="handleAddContext()">
+        <svg t="1766915545722" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="4994" width="200" height="200">
+          <path d="M469.333333 469.333333V170.666667h85.333334v298.666666h298.666666v85.333334h-298.666666v298.666666h-85.333334v-298.666666H170.666667v-85.333334h298.666666z" fill="#8a8a8a" p-id="4995"></path>
+        </svg>
+        <span class="add-context-label">添加上下文</span>
+      </button>
+      <span class="tooltiptext">添加文件或代码片段作为上下文</span>
+    </div>
+  `;
+}
+
+/**
+ * 获取添加上下文按钮的样式
+ */
+export function getContextButtonStyles(): string {
+  return `
+    /* 添加上下文按钮样式 */
+    .add-context-button {
+      display: flex;
+      align-items: center;
+      gap: 6px;
+      padding: 6px 12px;
+      background: rgba(128, 128, 128, 0.2);
+      border: 1px solid var(--vscode-input-border);
+      border-radius: 6px;
+      color: var(--vscode-foreground);
+      cursor: pointer;
+      transition: all 0.2s ease;
+      font-size: 13px;
+      font-weight: 500;
+    }
+
+    .add-context-button:hover {
+      background: rgba(128, 128, 128, 0.3);
+      border-color: var(--vscode-focusBorder);
+    }
+
+    .add-context-button svg {
+      width: 16px;
+      height: 16px;
+      color: #409eff;
+    }
+
+    .add-context-label {
+      white-space: nowrap;
+    }
+  `;
+}
+
+/**
+ * 获取添加上下文按钮的脚本
+ */
+export function getContextButtonScript(): string {
+  return `
+    // 添加上下文处理函数
+    function handleAddContext() {
+      // 发送添加上下文请求到扩展
+      vscode.postMessage({ command: 'addContext' });
+    }
+  `;
+}

src/views/contextCompress.ts

@@ -0,0 +1,249 @@
+/**
+ * 上下文压缩组件
+ * 提供上下文使用情况显示和压缩功能
+ */
+
+/**
+ * 获取上下文压缩组件的 HTML 内容
+ */
+export function getContextCompressContent(): string {
+  return `
+    <!-- 上下文显示 -->
+    <div class="context-display">
+      <div class="context-info" onclick="toggleContextPanel()">
+        <div class="database-icon">
+          <svg viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" class="db-svg">
+            <!-- 数据库容器主体 - 底层灰色 -->
+            <path d="M870.4 57.6C780.8 19.2 652.8 0 512 0 371.2 0 243.2 19.2 153.6 57.6 51.2 102.4 0 153.6 0 211.2l0 595.2c0 57.6 51.2 115.2 153.6 153.6C243.2 1004.8 371.2 1024 512 1024c140.8 0 268.8-19.2 358.4-57.6 96-38.4 153.6-96 153.6-153.6L1024 211.2C1024 153.6 972.8 102.4 870.4 57.6L870.4 57.6zM812.8 320C729.6 352 614.4 364.8 512 364.8 403.2 364.8 294.4 352 211.2 320 115.2 294.4 70.4 256 70.4 211.2c0-38.4 51.2-76.8 140.8-108.8C294.4 76.8 403.2 64 512 64c102.4 0 217.6 19.2 300.8 44.8 89.6 32 140.8 70.4 140.8 108.8C953.6 256 908.8 294.4 812.8 320L812.8 320zM819.2 505.6C736 531.2 620.8 550.4 512 550.4c-108.8 0-217.6-19.2-307.2-44.8C115.2 473.6 64 435.2 64 396.8L64 326.4C128 352 172.8 384 243.2 396.8 326.4 416 416 428.8 512 428.8c96 0 185.6-12.8 268.8-32C851.2 384 896 352 960 326.4l0 76.8C960 435.2 908.8 473.6 819.2 505.6L819.2 505.6zM819.2 710.4c-83.2 25.6-198.4 44.8-307.2 44.8-108.8 0-217.6-19.2-307.2-44.8C115.2 684.8 64 646.4 64 601.6L64 505.6c64 32 108.8 57.6 179.2 76.8C326.4 601.6 416 614.4 512 614.4c96 0 185.6-12.8 268.8-32C851.2 563.2 896 537.6 960 505.6l0 96C960 646.4 908.8 684.8 819.2 710.4L819.2 710.4zM512 960c-108.8 0-217.6-19.2-307.2-44.8C115.2 889.6 64 851.2 64 812.8l0-96c64 32 108.8 57.6 179.2 76.8 76.8 19.2 172.8 32 262.4 32 96 0 185.6-12.8 268.8-32 76.8-19.2 121.6-44.8 185.6-76.8l0 96c0 38.4-51.2 76.8-140.8 108.8C736 947.2 614.4 960 512 960L512 960z" fill="#94a3b8" class="db-body"/>
+
+            <!-- 填充进度效果 - 从下往上填充蓝色 -->
+            <defs>
+              <mask id="fill-mask">
+                <rect x="0" y="0" width="1024" height="1024" id="fillRect" fill="white"/>
+              </mask>
+            </defs>
+
+            <g mask="url(#fill-mask)">
+              <path d="M870.4 57.6C780.8 19.2 652.8 0 512 0 371.2 0 243.2 19.2 153.6 57.6 51.2 102.4 0 153.6 0 211.2l0 595.2c0 57.6 51.2 115.2 153.6 153.6C243.2 1004.8 371.2 1024 512 1024c140.8 0 268.8-19.2 358.4-57.6 96-38.4 153.6-96 153.6-153.6L1024 211.2C1024 153.6 972.8 102.4 870.4 57.6L870.4 57.6zM812.8 320C729.6 352 614.4 364.8 512 364.8 403.2 364.8 294.4 352 211.2 320 115.2 294.4 70.4 256 70.4 211.2c0-38.4 51.2-76.8 140.8-108.8C294.4 76.8 403.2 64 512 64c102.4 0 217.6 19.2 300.8 44.8 89.6 32 140.8 70.4 140.8 108.8C953.6 256 908.8 294.4 812.8 320L812.8 320zM819.2 505.6C736 531.2 620.8 550.4 512 550.4c-108.8 0-217.6-19.2-307.2-44.8C115.2 473.6 64 435.2 64 396.8L64 326.4C128 352 172.8 384 243.2 396.8 326.4 416 416 428.8 512 428.8c96 0 185.6-12.8 268.8-32C851.2 384 896 352 960 326.4l0 76.8C960 435.2 908.8 473.6 819.2 505.6L819.2 505.6zM819.2 710.4c-83.2 25.6-198.4 44.8-307.2 44.8-108.8 0-217.6-19.2-307.2-44.8C115.2 684.8 64 646.4 64 601.6L64 505.6c64 32 108.8 57.6 179.2 76.8C326.4 601.6 416 614.4 512 614.4c96 0 185.6-12.8 268.8-32C851.2 563.2 896 537.6 960 505.6l0 96C960 646.4 908.8 684.8 819.2 710.4L819.2 710.4zM512 960c-108.8 0-217.6-19.2-307.2-44.8C115.2 889.6 64 851.2 64 812.8l0-96c64 32 108.8 57.6 179.2 76.8 76.8 19.2 172.8 32 262.4 32 96 0 185.6-12.8 268.8-32 76.8-19.2 121.6-44.8 185.6-76.8l0 96c0 38.4-51.2 76.8-140.8 108.8C736 947.2 614.4 960 512 960L512 960z" fill="#409eff" class="db-fill"/>
+            </g>
+          </svg>
+        </div>
+        <span class="context-percentage" id="contextPercentage">0%</span>
+      </div>
+
+      <!-- 上下文信息弹窗 -->
+      <div id="contextPanel" class="context-panel">
+        <div class="context-panel-content">
+          <div class="context-info-text" id="contextInfoText">
+            0k / 200k 已用上下文
+          </div>
+          <button class="compress-button" onclick="compressConversation()">
+            压缩会话
+          </button>
+        </div>
+      </div>
+    </div>
+  `;
+}
+
+/**
+ * 获取上下文压缩组件的样式
+ */
+export function getContextCompressStyles(): string {
+  return `
+    /* 上下文显示样式 */
+    .context-display {
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      position: relative;
+    }
+    .context-info {
+      display: flex;
+      align-items: center;
+      gap: 6px;
+      height: 40px;
+      background: transparent;
+      border: none;
+      border-radius: 4px;
+      font-size: 14px;
+      font-weight: 500;
+      color: var(--vscode-foreground);
+      transition: opacity 0.3s ease;
+      box-shadow: none;
+      position: relative;
+      overflow: hidden;
+      cursor: pointer;
+    }
+    .context-info:hover {
+      opacity: 0.8;
+    }
+    .database-icon {
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      width: 12px;
+      height: 12px;
+      position: relative;
+    }
+    .db-svg {
+      width: 100%;
+      height: 100%;
+    }
+    .db-body {
+      fill: #ffffff;
+    }
+    .db-fill {
+      fill: #409eff;
+      transition: all 0.3s ease;
+    }
+    .context-percentage {
+      font-size: 14px;
+      font-weight: 500;
+      color: var(--vscode-foreground);
+      text-align: right;
+    }
+    /* 上下文信息弹窗样式 */
+    .context-panel {
+      position: absolute;
+      bottom: 100%;
+      left: 50%;
+      transform: translateX(-50%);
+      margin-bottom: 8px;
+      z-index: 1000;
+      animation: fadeInUp 0.2s ease-out;
+      display: none;
+    }
+    .context-panel.active {
+      display: block;
+    }
+    .context-panel::after {
+      content: "";
+      position: absolute;
+      bottom: -6px;
+      left: 50%;
+      transform: translateX(-50%);
+      width: 0;
+      height: 0;
+      border-left: 6px solid transparent;
+      border-right: 6px solid transparent;
+      border-top: 6px solid #ffffff;
+    }
+    .context-panel-content {
+      background: #ffffff;
+      border: 1px solid rgba(0, 0, 0, 0.1);
+      border-radius: 8px;
+      padding: 12px;
+      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
+      backdrop-filter: blur(10px);
+      min-width: 160px;
+    }
+    .context-info-text {
+      font-size: 12px;
+      color: #374151;
+      text-align: center;
+      margin-bottom: 8px;
+      white-space: nowrap;
+    }
+    .compress-button {
+      width: 100%;
+      background: linear-gradient(145deg, #3b82f6 0%, #1d4ed8 100%);
+      border: 1px solid rgba(59, 130, 246, 0.3);
+      border-radius: 6px;
+      color: white;
+      font-size: 12px;
+      font-weight: 500;
+      padding: 6px 12px;
+      cursor: pointer;
+      transition: all 0.2s ease;
+    }
+    .compress-button:hover {
+      background: linear-gradient(145deg, #2563eb 0%, #1e40af 100%);
+      transform: translateY(-1px);
+      box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
+    }
+    .compress-button:active {
+      transform: translateY(0);
+    }
+    @keyframes fadeInUp {
+      from {
+        opacity: 0;
+        transform: translateX(-50%) translateY(10px);
+      }
+      to {
+        opacity: 1;
+        transform: translateX(-50%) translateY(0);
+      }
+    }
+  `;
+}
+
+/**
+ * 获取上下文压缩组件的脚本
+ */
+export function getContextCompressScript(): string {
+  return `
+    // 上下文面板相关函数
+    function toggleContextPanel() {
+      const contextPanel = document.getElementById('contextPanel');
+      if (contextPanel) {
+        if (contextPanel.classList.contains('active')) {
+          contextPanel.classList.remove('active');
+        } else {
+          contextPanel.classList.add('active');
+        }
+      }
+    }
+
+    function compressConversation() {
+      // 发送压缩会话请求
+      vscode.postMessage({ command: 'compressConversation' });
+      addMessage('正在压缩会话...', 'bot');
+
+      // 关闭面板
+      const contextPanel = document.getElementById('contextPanel');
+      if (contextPanel) {
+        contextPanel.classList.remove('active');
+      }
+    }
+
+    function updateContextDisplay(currentTokens, maxTokens) {
+      const percentage = Math.min(Math.round((currentTokens / maxTokens) * 100), 100);
+
+      // 更新百分比显示
+      const contextPercentage = document.getElementById('contextPercentage');
+      if (contextPercentage) {
+        contextPercentage.textContent = percentage + '%';
+      }
+
+      // 更新详细信息
+      const contextInfoText = document.getElementById('contextInfoText');
+      if (contextInfoText) {
+        const currentK = Math.round((currentTokens / 1000) * 10) / 10;
+        const maxK = Math.round(maxTokens / 1000);
+        contextInfoText.textContent = \`\${currentK}k / \${maxK}k 已用上下文\`;
+      }
+
+      // 更新SVG填充效果（从下往上填充）
+      const fillRect = document.getElementById('fillRect');
+      if (fillRect) {
+        const fillHeight = (1024 * percentage) / 100;
+        const fillY = 1024 - fillHeight;
+        fillRect.setAttribute('y', fillY.toString());
+        fillRect.setAttribute('height', fillHeight.toString());
+      }
+    }
+
+    // 点击外部关闭上下文面板
+    document.addEventListener('click', (event) => {
+      const contextDisplay = document.querySelector('.context-display');
+      const contextPanel = document.getElementById('contextPanel');
+
+      if (contextPanel && contextPanel.classList.contains('active') && contextDisplay) {
+        if (!contextDisplay.contains(event.target)) {
+          contextPanel.classList.remove('active');
+        }
+      }
+    });
+  `;
+}

src/views/conversationHistoryBar.ts

@@ -111,6 +111,10 @@ export function getConversationHistoryBarStyles(): string {
       cursor: pointer;
       transition: background 0.2s ease;
       border-bottom: 1px solid var(--vscode-panel-border);
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: 12px;
     }
 
     .history-item:last-child {
@@ -124,15 +128,17 @@ export function getConversationHistoryBarStyles(): string {
     .history-item-title {
       font-size: 14px;
       font-weight: 500;
-      margin-bottom: 4px;
       white-space: nowrap;
       overflow: hidden;
       text-overflow: ellipsis;
+      flex: 1;
     }
 
     .history-item-time {
       font-size: 12px;
       opacity: 0.7;
+      white-space: nowrap;
+      flex-shrink: 0;
     }
 
     .history-empty {
@@ -142,6 +148,14 @@ export function getConversationHistoryBarStyles(): string {
       font-size: 14px;
     }
 
+    .history-load-more {
+      padding: 12px 16px;
+      text-align: center;
+      color: var(--vscode-descriptionForeground);
+      font-size: 12px;
+      border-top: 1px solid var(--vscode-panel-border);
+    }
+
     .new-conversation-button {
       width: 36px;
       height: 36px;
@@ -199,6 +213,12 @@ export function getConversationHistoryBarScript(): string {
     // 会话历史相关变量
     let conversationHistory = [];
     let currentConversationId = null;
+    let currentOffset = 0;
+    let totalHistory = 0;
+    let hasMoreHistory = false;
+    let isLoadingHistory = false;
+    const HISTORY_PAGE_SIZE = 10;
+    const MAX_HISTORY_ITEMS = 100;
 
     // 切换历史记录下拉菜单
     function toggleHistoryDropdown() {
@@ -211,33 +231,90 @@ export function getConversationHistoryBarScript(): string {
       } else {
         menu.classList.add('active');
         button.classList.add('active');
-        // 加载会话历史
+        // 重置并加载会话历史
-        loadConversationHistory();
+        resetAndLoadHistory();
       }
     }
 
-    // 加载会话历史
+    // 重置并加载会话历史
-    function loadConversationHistory() {
+    function resetAndLoadHistory() {
-      vscode.postMessage({ command: 'loadConversationHistory' });
+      conversationHistory = [];
-    }
+      currentOffset = 0;
-
+      totalHistory = 0;
-    // 渲染会话历史列表
+      hasMoreHistory = false;
-    function renderConversationHistory(history) {
-      conversationHistory = history;
       const historyList = document.getElementById('historyList');
+      if (historyList) {
+        historyList.innerHTML = '<div class="history-empty">加载中...</div>';
+      }
+      loadMoreHistory();
+    }
 
-      if (!history || history.length === 0) {
+    // 加载更多会话历史
+    function loadMoreHistory() {
+      if (isLoadingHistory || (currentOffset > 0 && !hasMoreHistory)) {
+        return;
+      }
+
+      // 检查是否已达到最大数量
+      if (currentOffset >= MAX_HISTORY_ITEMS) {
+        return;
+      }
+
+      isLoadingHistory = true;
+      vscode.postMessage({
+        command: 'loadConversationHistory',
+        offset: currentOffset,
+        limit: HISTORY_PAGE_SIZE
+      });
+    }
+
+    // 渲染会话历史列表（支持追加）
+    function renderConversationHistory(data) {
+      isLoadingHistory = false;
+
+      if (!data || !data.items) {
+        return;
+      }
+
+      // 追加新数据
+      conversationHistory = conversationHistory.concat(data.items);
+      totalHistory = data.total;
+      hasMoreHistory = data.hasMore;
+      currentOffset += data.items.length;
+
+      const historyList = document.getElementById('historyList');
+      if (!historyList) {
+        return;
+      }
+
+      // 如果没有任何历史记录
+      if (conversationHistory.length === 0) {
         historyList.innerHTML = '<div class="history-empty">暂无会话历史</div>';
         return;
       }
 
-      historyList.innerHTML = history.map(item => \`
+      // 渲染所有历史记录
-        <div class="history-item"
+      historyList.innerHTML = conversationHistory.map(item => \`
-             onclick="selectConversation('\${item.id}')">
+        <div class="history-item" onclick="selectConversation('\${item.id}')">
           <div class="history-item-title">\${item.title || '未命名会话'}</div>
           <div class="history-item-time">\${formatTime(item.timestamp)}</div>
         </div>
       \`).join('');
+
+      // 如果还有更多数据，添加"加载更多"提示
+      if (hasMoreHistory && currentOffset < MAX_HISTORY_ITEMS) {
+        historyList.innerHTML += \`
+          <div class="history-load-more" id="loadMoreIndicator">
+            <span>滚动加载更多...</span>
+          </div>
+        \`;
+      } else if (currentOffset >= MAX_HISTORY_ITEMS && hasMoreHistory) {
+        historyList.innerHTML += \`
+          <div class="history-load-more">
+            <span>已显示最近 \${MAX_HISTORY_ITEMS} 条记录</span>
+          </div>
+        \`;
+      }
     }
 
     // 选择会话
@@ -291,6 +368,22 @@ export function getConversationHistoryBarScript(): string {
       });
     }
 
+    // 监听下拉菜单滚动事件
+    const historyDropdownMenu = document.getElementById('historyDropdownMenu');
+    if (historyDropdownMenu) {
+      historyDropdownMenu.addEventListener('scroll', () => {
+        const menu = historyDropdownMenu;
+        const scrollTop = menu.scrollTop;
+        const scrollHeight = menu.scrollHeight;
+        const clientHeight = menu.clientHeight;
+
+        // 当滚动到距离底部 50px 时，加载更多
+        if (scrollHeight - scrollTop - clientHeight < 50) {
+          loadMoreHistory();
+        }
+      });
+    }
+
     // 点击外部关闭下拉菜单
     document.addEventListener('click', (event) => {
       const container = document.querySelector('.history-dropdown-container');

src/views/inputArea.ts

@@ -0,0 +1,418 @@
+import { getWaveformPreviewContent } from "./waveformPreviewContent";
+import {
+  getModelSelectorContent,
+  getModelSelectorStyles,
+  getModelSelectorScript
+} from "./modelSelector";
+import {
+  getModeSelectorContent,
+  getModeSelectorStyles,
+  getModeSelectorScript
+} from "./agentModeSelector";
+import {
+  getContextButtonContent,
+  getContextButtonStyles,
+  getContextButtonScript
+} from "./contextButton";
+import {
+  getContextCompressContent,
+  getContextCompressStyles,
+  getContextCompressScript
+} from "./contextCompress";
+
+/**
+ * 获取输入区域的 HTML 内容
+ */
+export function getInputAreaContent(): string {
+  return `
+    <div class="input-area">
+      <div class="input-group">
+        <div class="input-wrapper">
+          <!-- 顶部工具栏 -->
+          <div class="input-top-toolbar">
+            ${getContextButtonContent()}
+
+            <!-- Plan 开关 -->
+            <div class="tooltip">
+              <label class="plan-toggle">
+                <input type="checkbox" id="planToggle" onchange="handlePlanToggle()">
+                <span class="plan-toggle-slider"></span>
+                <span class="plan-toggle-label">Plan</span>
+              </label>
+              <span class="tooltiptext" id="planTooltip">启用 Plan 模式</span>
+            </div>
+          </div>
+          <textarea
+            id="messageInput"
+            placeholder="输入您的问题..."
+            onkeydown="if(event.key === 'Enter' && !event.shiftKey) { event.preventDefault(); sendMessage(); }"
+          ></textarea>
+          <div class="input-bottom-row">
+            <div class="mode-selector">
+              ${getModeSelectorContent()}
+              ${getModelSelectorContent()}
+            </div>
+            <div class="input-actions">
+              ${getContextCompressContent()}
+
+              <!-- 一键优化按钮 -->
+              <div class="tooltip">
+                <button id="optimizeButton" class="optimize-button" onclick="handleOptimize()">
+                  <svg t="1765867478136" id="optimizeIcon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="2314"><path d="M490.048929 399.773864c7.042381-21.120144 36.85976-21.120144 43.902142 0l41.273372 123.957105A184.967743 184.967743 0 0 0 692.274156 640.713687l123.890111 41.273373c21.119144 7.042381 21.119144 36.85976 0 43.902141L692.207161 767.162574A184.967743 184.967743 0 0 0 575.224443 884.212286l-41.273372 123.890111A23.09997 23.09997 0 0 1 512 1024c-9.983123 0-18.838344-6.409437-21.951071-15.897603L448.775557 884.145292A184.946745 184.946745 0 0 0 331.792839 767.162574L207.836733 725.889201A23.09997 23.09997 0 0 1 191.93813 703.93813c0-9.983123 6.409437-18.838344 15.897603-21.95107l123.957106-41.273373A184.946745 184.946745 0 0 0 448.775557 523.730969zM242.840657 73.466543A13.888779 13.888779 0 0 1 256.022498 63.94338c5.987474 0 11.299007 3.839663 13.182841 9.523163l24.767824 74.360464a111.070238 111.070238 0 0 0 70.19983 70.20083l74.360464 24.767824A13.888779 13.888779 0 0 1 448.05662 255.977502c0 5.987474-3.839663 11.299007-9.523163 13.182841l-74.360464 24.767823a110.947249 110.947249 0 0 0-70.20083 70.199831l-24.767824 74.360464A13.888779 13.888779 0 0 1 256.022498 448.011624a13.888779 13.888779 0 0 1-13.182841-9.523163l-24.767823-74.360464a110.947249 110.947249 0 0 0-70.199831-70.20083l-74.360464-24.767824A13.888779 13.888779 0 0 1 63.988376 255.977502c0-5.987474 3.839663-11.299007 9.523163-13.182841l74.360464-24.767824a110.947249 110.947249 0 0 0 70.20083-70.19983zM695.213897 6.335443a9.283184 9.283184 0 0 1 17.538459 0L729.260905 55.86509a73.889506 73.889506 0 0 0 46.843883 46.843883l49.530646 16.509549a9.283184 9.283184 0 0 1 0 17.538458L776.106787 153.266529a73.9585 73.9585 0 0 0-46.843882 46.843883l-16.509549 49.530647a9.283184 9.283184 0 0 1-17.538459 0L678.705348 200.112412a73.9585 73.9585 0 0 0-46.843883-46.843883l-49.468652-16.509549a9.283184 9.283184 0 0 1 0-17.538458l49.535646-16.509549a73.897505 73.897505 0 0 0 46.842883-46.843883L695.213897 6.397438z m0 0" p-id="2315" fill="#409eff"></path></svg>
+                </button>
+                <span class="tooltiptext" id="optimizeTooltip">一键优化</span>
+              </div>
+
+              <button onclick="sendMessage()">发送</button>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  `;
+}
+
+/**
+ * 获取输入区域的样式
+ */
+export function getInputAreaStyles(): string {
+  return `
+    ${getModeSelectorStyles()}
+    ${getModelSelectorStyles()}
+    ${getContextButtonStyles()}
+    ${getContextCompressStyles()}
+    .input-area {
+      border-top: 1px solid var(--vscode-panel-border);
+      padding-top: 15px;
+      flex-shrink: 0;
+    }
+    .input-group {
+      display: flex;
+      flex-direction: column;
+      gap: 10px;
+      background: var(--vscode-input-background);
+      border: 1px solid var(--vscode-input-border);
+      border-radius: 8px;
+      padding: 12px;
+      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 2px 6px rgba(0, 0, 0, 0.1);
+      transition: all 0.3s ease;
+    }
+    .input-group:hover {
+      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2), 0 3px 8px rgba(0, 0, 0, 0.15);
+    }
+    .input-group:focus-within {
+      border-color: var(--vscode-focusBorder);
+      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25), 0 3px 10px rgba(0, 0, 0, 0.2);
+    }
+    .input-wrapper {
+      display: flex;
+      flex-direction: column;
+      gap: 8px;
+      width: 100%;
+    }
+    /* 顶部工具栏样式 */
+    .input-top-toolbar {
+      display: flex;
+      justify-content: space-between;
+      align-items: center;
+      margin-bottom: 8px;
+      gap: 12px;
+    }
+    .plan-toggle {
+      display: flex;
+      align-items: center;
+      gap: 8px;
+      cursor: pointer;
+      user-select: none;
+    }
+    .plan-toggle input[type="checkbox"] {
+      display: none;
+    }
+    .plan-toggle-slider {
+      position: relative;
+      width: 36px;
+      height: 20px;
+      background: var(--vscode-input-background);
+      border: 1px solid var(--vscode-input-border);
+      border-radius: 10px;
+      transition: all 0.3s ease;
+    }
+    .plan-toggle-slider::before {
+      content: "";
+      position: absolute;
+      width: 14px;
+      height: 14px;
+      left: 2px;
+      top: 2px;
+      background: var(--vscode-foreground);
+      border-radius: 50%;
+      transition: all 0.3s ease;
+    }
+    .plan-toggle input[type="checkbox"]:checked + .plan-toggle-slider {
+      background: #409eff;
+      border-color: #409eff;
+    }
+    .plan-toggle input[type="checkbox"]:checked + .plan-toggle-slider::before {
+      transform: translateX(16px);
+      background: white;
+    }
+    .plan-toggle-label {
+      font-size: 13px;
+      font-weight: 500;
+      color: var(--vscode-foreground);
+    }
+    .input-bottom-row {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: 10px;
+      margin-bottom: -17px;
+    }
+    .mode-selector {
+      display: flex;
+      align-items: center;
+      gap: 8px;
+      position: relative;
+    }
+    .input-actions {
+      display: flex;
+      align-items: center;
+      gap: 10px;
+    }
+    /* Tooltip 样式 */
+    .tooltip {
+      position: relative;
+      display: inline-block;
+    }
+    .tooltip .tooltiptext {
+      visibility: hidden;
+      width: auto;
+      background: #1e1e1e;
+      color: #ffffff;
+      text-align: center;
+      border-radius: 6px;
+      padding: 6px 12px;
+      position: absolute;
+      z-index: 1000;
+      bottom: 150%;
+      left: 50%;
+      transform: translateX(-50%) translateY(10px);
+      opacity: 0;
+      transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
+      font-size: 12px;
+      font-weight: 500;
+      border: 1px solid rgba(255, 255, 255, 0.2);
+      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6), 0 2px 4px rgba(0, 0, 0, 0.3);
+      white-space: nowrap;
+      letter-spacing: 0.3px;
+    }
+    .tooltip .tooltiptext::after {
+      content: "";
+      position: absolute;
+      top: 100%;
+      left: 50%;
+      margin-left: -6px;
+      border-width: 6px;
+      border-style: solid;
+      border-color: #1e1e1e transparent transparent transparent;
+    }
+    .tooltip .tooltiptext::before {
+      content: "";
+      position: absolute;
+      top: 100%;
+      left: 50%;
+      margin-left: -7px;
+      border-width: 7px;
+      border-style: solid;
+      border-color: rgba(255, 255, 255, 0.2) transparent transparent transparent;
+      z-index: -1;
+    }
+    .tooltip:hover .tooltiptext {
+      visibility: visible;
+      opacity: 1;
+      transform: translateX(-50%) translateY(0);
+    }
+    textarea {
+      width: 100%;
+      padding: 10px;
+      background: transparent;
+      color: var(--vscode-input-foreground);
+      border: none;
+      border-radius: 4px;
+      font-family: inherit;
+      resize: none;
+      min-height: 40px;
+      max-height: 200px;
+      outline: none;
+      box-sizing: border-box;
+      overflow-y: auto;
+      line-height: 1.5;
+    }
+    /* 简洁的滚动条样式 */
+    textarea::-webkit-scrollbar {
+      width: 8px;
+    }
+    textarea::-webkit-scrollbar-track {
+      background: transparent;
+    }
+    textarea::-webkit-scrollbar-thumb {
+      background: rgba(128, 128, 128, 0.5);
+      border-radius: 4px;
+    }
+    textarea::-webkit-scrollbar-button {
+      display: none;
+    }
+    button {
+      padding: 0 20px;
+      background: var(--vscode-button-background);
+      color: var(--vscode-button-foreground);
+      border: none;
+      border-radius: 4px;
+      cursor: pointer;
+    }
+    .optimize-button {
+      padding: 8px;
+      background: transparent;
+      color: var(--vscode-foreground);
+      border: none;
+      cursor: pointer;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      transition: opacity 0.2s ease;
+      width: 32px;
+      height: 32px;
+    }
+    .optimize-button:hover {
+      opacity: 0.7;
+    }
+    .optimize-button svg {
+      width: 16px;
+      height: 16px;
+    }
+    .optimize-button-wrapper {
+      display: flex;
+      align-items: flex-end;
+    }
+  `;
+}
+
+/**
+ * 获取输入区域的脚本
+ */
+export function getInputAreaScript(): string {
+  return `
+    ${getModeSelectorScript()}
+    ${getModelSelectorScript()}
+    ${getContextButtonScript()}
+    ${getContextCompressScript()}
+
+    // 自动调整 textarea 高度
+    function autoResizeTextarea() {
+      if (messageInput) {
+        messageInput.style.height = 'auto';
+        messageInput.style.height = messageInput.scrollHeight + 'px';
+      }
+    }
+
+    // 监听输入事件，自动调整高度
+    if (messageInput) {
+      messageInput.addEventListener('input', autoResizeTextarea);
+
+      // 初始化时调整一次高度
+      autoResizeTextarea();
+
+      // 聚焦到输入框
+      messageInput.focus();
+    }
+
+    function sendMessage() {
+      const text = messageInput.value.trim();
+      if (!text) return;
+
+      const mode = getCurrentMode(); // 从模式选择器组件获取当前模式
+      const model = getCurrentModel(); // 从模型选择器组件获取当前模型
+
+      addMessage(text, 'user');
+      vscode.postMessage({ command: 'sendMessage', text: text, mode: mode, model: model });
+      messageInput.value = '';
+      autoResizeTextarea(); // 重置输入框高度
+      messageInput.focus();
+
+      // 重置优化状态
+      resetOptimizeButton();
+    }
+
+    // Plan 开关处理函数
+    function handlePlanToggle() {
+      const planToggle = document.getElementById('planToggle');
+      const planTooltip = document.getElementById('planTooltip');
+
+      if (planToggle && planTooltip) {
+        if (planToggle.checked) {
+          // 开启 Plan 模式
+          planTooltip.textContent = '关闭 Plan 模式';
+        } else {
+          // 关闭 Plan 模式
+          planTooltip.textContent = '启用 Plan 模式';
+        }
+      }
+    }
+
+    let isOptimized = false; // 标记是否已优化
+    let originalText = ''; // 保存原始文本用于撤回
+
+    function handleOptimize() {
+      if (isOptimized) {
+        // 撤回操作
+        messageInput.value = originalText;
+        resetOptimizeButton();
+      } else {
+        // 优化操作
+        originalText = messageInput.value; // 保存原始文本
+
+        // 使用死数据替换输入框内容
+        const optimizedTexts = [
+          '请帮我优化这段代码，提高性能和可读性',
+          '请分析这个问题并给出最佳解决方案',
+          '请帮我重构这段代码，使其更加简洁高效',
+          '请检查代码中的潜在问题并提供改进建议'
+        ];
+        const randomText = optimizedTexts[Math.floor(Math.random() * optimizedTexts.length)];
+        messageInput.value = randomText;
+
+        // 切换到撤回状态
+        isOptimized = true;
+        updateOptimizeButton();
+      }
+
+      messageInput.focus();
+      autoResizeTextarea();
+    }
+
+    function updateOptimizeButton() {
+      const optimizeIcon = document.getElementById('optimizeIcon');
+      const optimizeTooltip = document.getElementById('optimizeTooltip');
+
+      if (optimizeIcon && optimizeTooltip) {
+        // 切换为撤回图标
+        optimizeIcon.innerHTML = '<path d="M581.056 288.32H232.96l108.352-102.208c15.552-15.744 19.456-31.104 4.16-46.208-16.064-15.872-32.576-15.808-48.64 0l-145.92 144.768c-8.768 8.832-23.488 20.608-22.08 32.448l0.64 4.8-0.64 4.864c-1.344 11.776 6.4 18.24 14.848 26.816l147.648 145.216c16.064 15.808 38.08 20.992 54.144 5.12 15.296-15.104 3.84-38.208-11.328-53.504L233.152 353.6 581.056 352c126.464 0 250.944 111.488 250.944 236.16C832 712.832 707.52 832 581.056 832H246.4c-22.592 0-29.696 9.6-29.696 32.256s7.04 31.744 29.696 31.744H581.12C755.136 896 896 757.696 896 588.16c0-169.408-140.8-299.84-314.944-299.84z" fill="currentColor"/><path d="M323.392 192a32 32 0 1 1 0-64 32 32 0 0 1 0 64zM320.192 514.048a32 32 0 1 1 0-64 32 32 0 0 1 0 64zM237.824 896a32 32 0 1 1 0-64 32 32 0 0 1 0 64z" fill="currentColor"/>';
+        optimizeTooltip.textContent = '撤回';
+      }
+    }
+
+    function resetOptimizeButton() {
+      const optimizeIcon = document.getElementById('optimizeIcon');
+      const optimizeTooltip = document.getElementById('optimizeTooltip');
+
+      if (optimizeIcon && optimizeTooltip) {
+        // 切换回优化图标（星星图标）
+        optimizeIcon.innerHTML = '<path d="M490.048929 399.773864c7.042381-21.120144 36.85976-21.120144 43.902142 0l41.273372 123.957105A184.967743 184.967743 0 0 0 692.274156 640.713687l123.890111 41.273373c21.119144 7.042381 21.119144 36.85976 0 43.902141L692.207161 767.162574A184.967743 184.967743 0 0 0 575.224443 884.212286l-41.273372 123.890111A23.09997 23.09997 0 0 1 512 1024c-9.983123 0-18.838344-6.409437-21.951071-15.897603L448.775557 884.145292A184.946745 184.946745 0 0 0 331.792839 767.162574L207.836733 725.889201A23.09997 23.09997 0 0 1 191.93813 703.93813c0-9.983123 6.409437-18.838344 15.897603-21.95107l123.957106-41.273373A184.946745 184.946745 0 0 0 448.775557 523.730969zM242.840657 73.466543A13.888779 13.888779 0 0 1 256.022498 63.94338c5.987474 0 11.299007 3.839663 13.182841 9.523163l24.767824 74.360464a111.070238 111.070238 0 0 0 70.19983 70.20083l74.360464 24.767824A13.888779 13.888779 0 0 1 448.05662 255.977502c0 5.987474-3.839663 11.299007-9.523163 13.182841l-74.360464 24.767823a110.947249 110.947249 0 0 0-70.20083 70.199831l-24.767824 74.360464A13.888779 13.888779 0 0 1 256.022498 448.011624a13.888779 13.888779 0 0 1-13.182841-9.523163l-24.767823-74.360464a110.947249 110.947249 0 0 0-70.199831-70.20083l-74.360464-24.767824A13.888779 13.888779 0 0 1 63.988376 255.977502c0-5.987474 3.839663-11.299007 9.523163-13.182841l74.360464-24.767824a110.947249 110.947249 0 0 0 70.20083-70.19983zM695.213897 6.335443a9.283184 9.283184 0 0 1 17.538459 0L729.260905 55.86509a73.889506 73.889506 0 0 0 46.843883 46.843883l49.530646 16.509549a9.283184 9.283184 0 0 1 0 17.538458L776.106787 153.266529a73.9585 73.9585 0 0 0-46.843882 46.843883l-16.509549 49.530647a9.283184 9.283184 0 0 1-17.538459 0L678.705348 200.112412a73.9585 73.9585 0 0 0-46.843883-46.843883l-49.468652-16.509549a9.283184 9.283184 0 0 1 0-17.538458l49.535646-16.509549a73.897505 73.897505 0 0 0 46.842883-46.843883L695.213897 6.397438z m0 0" fill="#409eff"/>';
+        optimizeTooltip.textContent = '一键优化';
+      }
+      
+      isOptimized = false;
+      originalText = '';
+    }
+  `;
+}

src/views/modelSelector.ts

@@ -0,0 +1,250 @@
+/**
+ * 模型选择器组件
+ */
+
+/**
+ * 获取模型选择器的 HTML 内容
+ */
+export function getModelSelectorContent(): string {
+  return `
+    <!-- 模型选择 -->
+    <div class="tooltip">
+      <div class="custom-select" id="modelSelect">
+        <div class="select-trigger" onclick="toggleModelDropdown()">
+          <span class="select-value" id="modelValue">Auto</span>
+          <svg class="select-arrow" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
+            <path d="M507.8 727.728a30.016 30.016 0 0 1-21.288-8.824L231.104 463.496a30.088 30.088 0 0 1 0-42.568 30.088 30.088 0 0 1 42.568 0l234.128 234.128 234.16-234.128a30.088 30.088 0 0 1 42.568 0 30.088 30.088 0 0 1 0 42.568L529.08 718.904a30 30 0 0 1-21.28 8.824z" fill="#8a8a8a"/>
+          </svg>
+        </div>
+        <div class="select-dropdown" id="modelDropdown">
+          <div class="select-option" data-value="lite" data-tooltip="快速响应，适合简单任务" onclick="selectModel('lite', 'Lite')">Lite</div>
+          <div class="select-option selected" data-value="auto" data-tooltip="自动选择最佳模型" onclick="selectModel('auto', 'Auto')">Auto</div>
+          <div class="select-option" data-value="syntaxic" data-tooltip="语法分析和代码理解" onclick="selectModel('syntaxic', 'Syntaxic')">Syntaxic</div>
+          <div class="select-option" data-value="max" data-tooltip="最强性能，复杂任务" onclick="selectModel('max', 'Max')">Max</div>
+        </div>
+        <!-- 模型选择器的 tooltip 容器 -->
+        <div id="modelTooltip" class="model-tooltip"></div>
+      </div>
+      <span class="tooltiptext">选择模型</span>
+    </div>
+  `;
+}
+
+/**
+ * 获取模型选择器的样式
+ */
+export function getModelSelectorStyles(): string {
+  return `
+    /* 自定义下拉框样式 */
+    .custom-select {
+      position: relative;
+      user-select: none;
+    }
+    .select-trigger {
+      display: flex;
+      align-items: center;
+      gap: 6px;
+      padding: 4px 8px;
+      background: var(--vscode-input-background);
+      color: var(--vscode-foreground);
+      border: none;
+      border-radius: 4px;
+      cursor: pointer;
+      font-size: 12px;
+      transition: background 0.2s ease;
+    }
+    .select-trigger:hover {
+      background: var(--vscode-list-hoverBackground);
+    }
+    .select-value {
+      white-space: nowrap;
+    }
+    .select-arrow {
+      width: 12px;
+      height: 12px;
+      flex-shrink: 0;
+      transition: transform 0.2s ease;
+    }
+    .custom-select.active .select-arrow {
+      transform: rotate(180deg);
+    }
+    .select-dropdown {
+      position: absolute;
+      bottom: calc(100% + 2px);
+      left: 0;
+      min-width: 100%;
+      background: var(--vscode-dropdown-background);
+      border: 1px solid var(--vscode-dropdown-border);
+      border-radius: 4px;
+      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+      z-index: 1100;
+      display: none;
+      overflow: visible;
+    }
+    .custom-select.active .select-dropdown {
+      display: block;
+    }
+    /* 模型选择器的选项样式 */
+    #modelDropdown .select-option {
+      position: relative;
+      padding: 6px 12px;
+      font-size: 12px;
+      cursor: pointer;
+      transition: background 0.2s ease;
+      white-space: nowrap;
+    }
+    #modelDropdown .select-option:hover {
+      background: rgba(128, 128, 128, 0.3);
+    }
+    #modelDropdown .select-option.selected {
+      background: rgba(128, 128, 128, 0.5);
+      color: var(--vscode-foreground);
+    }
+    /* 模型选择器的 tooltip 样式 */
+    .model-tooltip {
+      position: fixed;
+      background: #1e1e1e;
+      color: #ffffff;
+      padding: 8px 12px;
+      border-radius: 6px;
+      font-size: 12px;
+      white-space: nowrap;
+      pointer-events: none;
+      z-index: 10000;
+      border: 1px solid rgba(255, 255, 255, 0.2);
+      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
+      opacity: 0;
+      visibility: hidden;
+      transition: opacity 0.2s ease, visibility 0.2s ease;
+    }
+    .model-tooltip.show {
+      opacity: 1;
+      visibility: visible;
+    }
+    /* tooltip 箭头 */
+    .model-tooltip::before {
+      content: "";
+      position: absolute;
+      right: 100%;
+      top: 50%;
+      transform: translateY(-50%);
+      border-width: 7px;
+      border-style: solid;
+      border-color: transparent rgba(255, 255, 255, 0.2) transparent transparent;
+      z-index: -1;
+    }
+    .model-tooltip::after {
+      content: "";
+      position: absolute;
+      right: 100%;
+      top: 50%;
+      transform: translateY(-50%);
+      border-width: 6px;
+      border-style: solid;
+      border-color: transparent #1e1e1e transparent transparent;
+      margin-right: 1px;
+    }
+  `;
+}
+
+/**
+ * 获取模型选择器的脚本
+ */
+export function getModelSelectorScript(): string {
+  return `
+    // 模型选择相关变量
+    let currentModel = 'auto';
+
+    // 切换模型下拉框显示/隐藏
+    function toggleModelDropdown() {
+      const modelSelect = document.getElementById('modelSelect');
+      const customSelect = document.getElementById('customSelect');
+      if (modelSelect) {
+        modelSelect.classList.toggle('active');
+        // 关闭模式下拉框
+        if (customSelect) {
+          customSelect.classList.remove('active');
+        }
+      }
+    }
+
+    // 选择模型
+    function selectModel(value, label) {
+      currentModel = value;
+      const modelValue = document.getElementById('modelValue');
+      if (modelValue) {
+        modelValue.textContent = label;
+      }
+
+      // 更新选中状态
+      const options = document.querySelectorAll('#modelDropdown .select-option');
+      options.forEach(option => {
+        if (option.getAttribute('data-value') === value) {
+          option.classList.add('selected');
+        } else {
+          option.classList.remove('selected');
+        }
+      });
+
+      // 关闭下拉框
+      const modelSelect = document.getElementById('modelSelect');
+      if (modelSelect) {
+        modelSelect.classList.remove('active');
+      }
+    }
+
+    // 点击外部关闭模型下拉框
+    document.addEventListener('click', (event) => {
+      const modelSelect = document.getElementById('modelSelect');
+      if (modelSelect && !modelSelect.contains(event.target)) {
+        modelSelect.classList.remove('active');
+      }
+    });
+
+    // 获取当前选中的模型
+    function getCurrentModel() {
+      return currentModel;
+    }
+
+    // 模型选择器 tooltip 功能
+    (function initModelTooltip() {
+      const modelDropdown = document.getElementById('modelDropdown');
+      const modelTooltip = document.getElementById('modelTooltip');
+
+      if (!modelDropdown || !modelTooltip) return;
+
+      // 为每个选项添加鼠标事件
+      const options = modelDropdown.querySelectorAll('.select-option');
+
+      options.forEach(option => {
+        option.addEventListener('mouseenter', function(e) {
+          const tooltipText = this.getAttribute('data-tooltip');
+          if (!tooltipText) return;
+
+          // 设置 tooltip 内容
+          modelTooltip.textContent = tooltipText;
+
+          // 获取选项的位置
+          const rect = this.getBoundingClientRect();
+
+          // 计算 tooltip 位置（在选项右侧）
+          const tooltipRect = modelTooltip.getBoundingClientRect();
+          const left = rect.right + 12;
+          const top = rect.top + (rect.height / 2) - (tooltipRect.height / 2);
+
+          // 设置位置
+          modelTooltip.style.left = left + 'px';
+          modelTooltip.style.top = top + 'px';
+
+          // 显示 tooltip
+          modelTooltip.classList.add('show');
+        });
+
+        option.addEventListener('mouseleave', function() {
+          // 隐藏 tooltip
+          modelTooltip.classList.remove('show');
+        });
+      });
+    })();
+  `;
+}