feat: 模式传递和 API 调用

- dialogService 接收并传递 mode 参数
- apiClient 构造带 mode 的请求
- messageHandler 从 WebView 消息获取 mode

src/services/apiClient.ts

@@ -6,7 +6,7 @@ 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';
+import type { ToolCallResult, AnswerRequest, ToolResultResponse, AnswerResponse, ToolConfirmResponse } from '../types/api';
 
 /**
  * HTTP 请求选项
@@ -103,6 +103,18 @@ export async function submitAnswer(answer: AnswerRequest): Promise<AnswerRespons
   });
 }
 
+/**
+ * 提交工具确认响应（Ask 模式）
+ * POST /api/tool/confirm
+ */
+export async function submitToolConfirm(response: ToolConfirmResponse): Promise<ToolResultResponse> {
+  console.log(`[API] 提交工具确认: confirmId=${response.confirmId}, approved=${response.approved}`);
+  return request<ToolResultResponse>('/api/tool/confirm', {
+    method: 'POST',
+    body: response
+  });
+}
+
 /**
  * 健康检查
  * GET /api/dialog/health