chore: finish bot updates and add MIT license

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 wutongyuonce
+
+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

@@ -120,4 +120,4 @@ README、SPEC 和操作指南描述当前实现。网页结构、交互和代码
 - 它会改 Markdown / JSON / `src/config.ts` 里的站点信息；新博客文章在用户没说发布时保持 `draft: true`（不适用于拾趣）；没有明确授权就不要 commit、push 或部署。
 - 改结构、CSS、分页算法时不要走这个 skill，用 `docs/项目解析.md`。
 
-MIT
+[MIT](LICENSE)

README_ENG.md

@@ -118,4 +118,4 @@ The skill lives at `blog-content-publisher-skill/SKILL.md`.
 - It edits Markdown / JSON / site configuration in `src/config.ts`. New blog posts keep `draft: true` unless you asked to publish; this does not apply to interests. Do not commit, push or deploy without explicit authorization.
 - Do not use this skill for structure, CSS, or pagination logic — use `docs/项目解析.md`.
 
-MIT
+[MIT](LICENSE)