chore: 添加 MIT 许可证并更新版权年份至 2026

Author: leonyangdev

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026-present, Leon Yang (leonyangdev)
+
+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.

book/.vitepress/config.mts

@@ -81,7 +81,7 @@ export default defineConfig({
     // 页脚
     footer: {
       message: '基于 Kaggle MNIST 数据集，使用纯 numpy 从零实现',
-      copyright: 'Copyright © 2024 · 以 MIT 协议开源',
+      copyright: 'Copyright © 2026 · 以 MIT 协议开源',
     },
 
     // 右侧文章目录