docs: add MIT license

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 OxideJS contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -197,3 +197,7 @@ Benchmark 工作围绕可复现脚本和可比较 baseline 展开。
 - JerryScript
 
 [TODO] 完工时放与其他 baseline 的对比表格
+
+## 9. License
+
+本项目采用 MIT License 开源协议。协议全文见项目根目录的 [LICENSE](LICENSE) 文件。

设计方案文档.md

@@ -751,4 +751,10 @@ Developer / CLI / test262
 
 [TODO] 各平台 Benchmark 与竞争产品对比
 
-[TODO] AI 使用情况说明
+[TODO] AI 使用情况说明
+
+---
+
+## License
+
+本项目采用 MIT License 开源协议。协议全文见项目根目录的 [LICENSE](LICENSE) 文件。