docs: 添加 2026 年 2 月捐赠记录 (#423)

- 新增两条赞赏记录：小爷 ￥29.99、Arthur.Morgan ￥9.99
- 更新累计收到赞赏：￥969.95 → ￥1009.93
- 更新 README 徽章数字

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

README.md

@@ -5,7 +5,7 @@
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![善款已捐](https://img.shields.io/badge/善款已捐-CNY%201300.00-brightgreen?style=flat-square)](./DONATIONS.md)
-[![爱心汇聚](https://img.shields.io/badge/爱心汇聚-CNY%20969.95-blue?style=flat-square)](./DONATIONS.md)
+[![爱心汇聚](https://img.shields.io/badge/爱心汇聚-CNY%201009.93-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。