docs: 新增 3 月赞赏记录（勇敢的心 ￥19.99） (#544)

- 3 月合计 ￥89.95，累计收到 ￥1365.88
- 同步更新 README/README_EN 爱心汇聚 badge

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

DONATIONS.md

@@ -7,7 +7,7 @@
 
 ## 摘要
 
-- 累计收到赞赏：￥ 1345.89
+- 累计收到赞赏：￥ 1365.88
 - 累计捐赠：￥ 1610
 - 最近更新时间：2026-03-08
 
@@ -26,7 +26,7 @@
 
 **本月小结**
 
-- 收到赞赏合计：￥ 69.96
+- 收到赞赏合计：￥ 89.95
 - 捐出合计：待更新
 
 **收到的赞赏**
@@ -36,6 +36,7 @@
 | 2026-03-04 | 之乎者也 | 9.99 | 赞赏码 |
 | 2026-03-05 | 质数的孤独 | 29.99 | 赞赏码 |
 | 2026-03-06 | 无名大侠 | 19.99 | 赞赏码 |
+| 2026-03-08 | 勇敢的心 | 19.99 | 赞赏码 |
 
 
 ### 2026-02

README.md

@@ -5,7 +5,7 @@
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![善款已捐](https://img.shields.io/badge/善款已捐-CNY%201610.00-brightgreen?style=flat-square)](./DONATIONS.md)
-[![爱心汇聚](https://img.shields.io/badge/爱心汇聚-CNY%201345.89-blue?style=flat-square)](./DONATIONS.md)
+[![爱心汇聚](https://img.shields.io/badge/爱心汇聚-CNY%201365.88-blue?style=flat-square)](./DONATIONS.md)
 [![Docker Pulls](https://img.shields.io/docker/pulls/xpzouying/xiaohongshu-mcp?style=flat-square&logo=docker)](https://hub.docker.com/r/xpzouying/xiaohongshu-mcp)
 
 MCP for 小红书 / xiaohongshu.com。让你的 AI 助手直接访问小红书数据。

README_EN.md

@@ -7,7 +7,7 @@
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![Philanthropy](https://img.shields.io/badge/Philanthropy-CNY%201610.00-brightgreen?style=flat-square)](./DONATIONS.md)
-[![Gratitude](https://img.shields.io/badge/Gratitude-CNY%201345.89-blue?style=flat-square)](./DONATIONS.md)
+[![Gratitude](https://img.shields.io/badge/Gratitude-CNY%201365.88-blue?style=flat-square)](./DONATIONS.md)
 [![Docker Pulls](https://img.shields.io/docker/pulls/xpzouying/xiaohongshu-mcp?style=flat-square&logo=docker)](https://hub.docker.com/r/xpzouying/xiaohongshu-mcp)
 
 MCP for RedNote (Xiaohongshu) platform.