docs: 创建文档目录 + 更新LICENSE + 规范项目文档

- 创建 docs/ 文档目录，包含快速开始、架构说明、插件列表、插件开发、API参考、贡献指南
- 更新 LICENSE 完整 Apache 2.0 模板，添加作者 yongwanxing
- README 许可证引用更新为 Copyright 2026 Falck, yongwanxing

LICENSE

@@ -167,7 +167,7 @@
       and charge a fee for, acceptance of support, warranty, indemnity,
       or other liability obligations and/or rights consistent with this
       License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
+      on Your own behalf and on your sole responsibility, not on behalf
       of any other Contributor, and only if You agree to indemnify,
       defend, and hold each Contributor harmless for any liability
       incurred by, or claims asserted against, such Contributor by reason
@@ -175,7 +175,18 @@
 
    END OF TERMS AND CONDITIONS
 
-   Copyright 2026 Falck
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2026 Falck, yongwanxing
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.