feat: 早报系统重构与功能增强

- 新增常驻调度器 daily/scheduler.py + run-scheduler.ps1（定时生成/推送）
- 新增 daily/bridge_manager.py：Windows 兼容的 Cursor SDK 桥接
- 新增 skills/daily-featured-pick 首推 Skill 与叙事轴/去重逻辑
- 新闻抓取窗口、GitHub 搜索、企微 delta 模式等多项改进
- 补充设计文档与 superpowers 计划/规范
- 新增对应测试（scheduler、featured_pick、github_search、news_fetch_window 等）

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

daily/news/feeds.py

@@ -27,7 +27,7 @@ NEWS_CATEGORIES: tuple[NewsCategory, ...] = (
         name="厂商官方",
         icon="🏢",
         feeds=(
-            NewsFeed("Anthropic Claude 更新", "https://docs.anthropic.com/en/release-notes/feed"),
+            NewsFeed("Anthropic Claude 更新", "https://platform.claude.com/docs/en/release-notes/overview"),
             NewsFeed("OpenAI", "https://openai.com/news/rss.xml"),
             NewsFeed("Google AI", "https://blog.google/technology/ai/rss/"),
             NewsFeed("DeepMind", "https://deepmind.google/blog/rss.xml"),