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/skills_group.py

@@ -9,6 +9,28 @@ def skill_id(item: dict[str, Any]) -> str:
     return str(item.get("id") or f"{item.get('source')}/{item.get('title')}")
 
 
+def source_from_skill_key(key: str) -> str:
+    """从 skill id（source/title…）还原 source：去掉最后一段 title。"""
+    parts = [p for p in str(key or "").split("/") if p]
+    if len(parts) >= 2:
+        return "/".join(parts[:-1])
+    return str(key or "").strip()
+
+
+def expand_skill_recent_keys(keys: set[str] | None) -> set[str]:
+    """周去重 blocklist：保留原始 key，并展开为 source。"""
+    out: set[str] = set()
+    for key in keys or set():
+        k = str(key or "").strip()
+        if not k:
+            continue
+        out.add(k)
+        src = source_from_skill_key(k)
+        if src:
+            out.add(src)
+    return out
+
+
 def format_installs(n: int | float) -> str:
     if n >= 1_000_000:
         return f"{n / 1_000_000:.1f}M"