feat: add qwen3.5-plus for testing and make it default

docs/README-zh.md

@@ -64,8 +64,8 @@ npm install page-agent
 import { PageAgent } from 'page-agent'
 
 const agent = new PageAgent({
-    model: 'deepseek-chat',
-    baseURL: 'https://api.deepseek.com',
+    model: 'qwen3.5-plus',
+    baseURL: 'https://dashscope.aliyuncs.com/compatible-mode/v1',
     apiKey: 'YOUR_API_KEY',
     language: 'zh-CN',
 })

docs/privacy.md

@@ -0,0 +1,38 @@
+# Privacy
+
+**Last updated:** February 2026
+
+"We" in this document refers to the maintainers of the open-source Page Agent project (https://github.com/alibaba/page-agent). This policy covers only the Page Agent software itself — **not** any third-party product or service built with it. If you are using a product that integrates Page Agent, please refer to that product's own privacy policy.
+
+## No Backend, No Data Collection
+
+Page Agent (PageAgent.js and PageAgent Extension) is a **client-side only** tool. The product itself does **not** include any backend service. We do **not** collect or transmit any user data, and do **not** have access to your browsing activity, page content, or task instructions.
+
+All data transmission occurs **only** between your browser and the LLM provider you configure. You are in full control of which provider receives your data.
+
+## Free Testing LLM Proxies
+
+We provide two free LLM proxy services **for technical evaluation of PageAgent.js and PageAgent Extension only**:
+
+| Model                   | Proxy Target                                             | Terms / Privacy                                                                                                                                |
+| ----------------------- | -------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------- |
+| Qwen (Singapore Region) | `https://dashscope-intl.aliyuncs.com/compatible-mode/v1` | [Alibaba Cloud Bailian Terms](https://terms.alicdn.com/legal-agreement/terms/common_platform_service/20230728213935489/20230728213935489.html) |
+| DeepSeek                | `https://api.deepseek.com`                               | [DeepSeek Privacy Policy](https://cdn.deepseek.com/policies/en-US/deepseek-privacy-policy.html)                                                |
+
+When using these proxies:
+
+- Your task instructions and simplified page content are forwarded to the respective LLM provider
+- We do **not** store your task content, page content, or visited URLs
+- Minimal logging (timestamps, request metadata) may exist for abuse prevention
+- The free model and service providers may change at any time without notice
+- **Not recommended for production or daily use**
+
+## Your Control
+
+- You choose which LLM provider to use
+- You may configure your own API endpoint at any time
+- The project is open source and can be audited: https://github.com/alibaba/page-agent
+
+## Contact
+
+https://github.com/alibaba/page-agent/issues