add whitepaper en version

Author: bxwillshi

README.md

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+# Script-as-Test Model: Whitepaper
+
+This repository contains the official whitepaper of the **Script-as-Test (SAT) Model** — a collaboration model for managing automated test cases by treating test scripts as assets.
+
+## 📘 What is the SAT Model?
+
+The Script-as-Test Model promotes the idea that **test scripts should be the authoritative source of test cases**, and that they should be **automatically extracted, structured, and synchronized** into test management systems (TMS), such as Jira Xray.
+
+This model is realized through the **SAT Framework**, which defines a standardized process to:
+
+- Extract test case metadata from VCS (e.g., GitHub)
+- Convert scripts into structured, traceable test cases
+- Automatically synchronize test cases with TMS (e.g., Xray)
+
+There are two implementations of this framework:
+
+### 🔧 CLI Tool (Open Source)
+
+- GitHub: [TMAN Atlassian AutoTestCase Manager](https://github.com/TMAN-Lab/tman-atlassian-atc-manager)
+
+- PyPI: [`atlassian-auto-test-case-manager`](https://pypi.org/project/atlassian-auto-test-case-manager/)
+
+### 🌐 Jira Cloud Plugin (Private Beta)
+
+- Docs: [AutoTestCase Extractor](https://docs.tman.ltd/atce/overview)
+- Marketplace: *(Coming Soon)*
+
+## 🌐 Language Versions
+
+- [English](whitepaper.en.md)
+- [简体中文 (Simplified Chinese)](whitepaper.zh-cn.md)
+- [繁體中文 (Traditional Chinese)](whitepaper.zh-tw.md) 
+
+## 📄 License
+
+This whitepaper is licensed under the [Creative Commons Attribution 4.0 International (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/) License.
+
+[![License: CC BY 4.0](https://licensebuttons.net/l/by/4.0/88x31.png)](https://creativecommons.org/licenses/by/4.0/)
+
+Author: Will Shi (SHI WEI / 石巍)  
+Website: *(coming soon)*