将 OpenAI 官方新闻源添加到科技资讯分类

在 RSS 配置中新增 OpenAI News 订阅源，让用户能够及时获取 OpenAI 的最新产品发布、研究成果和公司动态。

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Seanium

config/rss-config.js

@@ -23,6 +23,11 @@ export const config = {
       url: "https://rsshub.rssforever.com/github/issue/headllines/hackernews-daily",
       category: "科技资讯",
     },
+    {
+      name: "OpenAI News",
+      url: "https://openai.com/news/rss.xml",
+      category: "科技资讯",
+    },
     {
       name: "Github 今日热门",
       url: "https://rsshub.rssforever.com/github/trending/daily/any",