feat(vault): track PARA layer (Categories/References/Notes/Daily/Clippings/Tags/Attachments/Presentations)

- Add 8 PARA directories to .gitignore whitelist (234 files)
- Completes dual-layer sync: LLM Wiki layer + PARA personal knowledge layer
- markdown_output/ remains excluded (transit zone)

References/大国大民：王志纲话说中国人.md

@@ -0,0 +1,20 @@
+---
+title: "大国大民：王志纲话说中国人"
+author:
+  - "王志纲"
+genre:
+pages:
+year:
+published:  微信读书推荐值 84.2%![]
+豆瓣评分: "微信读书推荐值 84.2%!"
+cover: "https://cdn.weread.qq.com/weread/cover/39/YueWen_40922815/t6_YueWen_40922815.jpg"
+isbn: "微信读书推荐值"
+language:
+created: 2026-04-13
+tags:
+  - "books"
+  - "to-read"
+categories:
+  - "[[books]]"
+rating: 4
+---