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)

Notes/PARA索引维护.md

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+## PARA索引维护.md - Obsidian Vault PARA索引维护
+
+这是一个 为**Obsidian vault** (not a code repo) - a knowledge management system使用PARA方法建立的索引维护文件。在obsidian笔记文件中对应属性para,para值将从下面内容中列出，该内容将定期整理维护。
+
+## **Project** 项目
+
+Active projects with clear goals and timelines
+
+关键词列表：
+
+项目
+
+项目-obsidian结合opencode工作流实践
+
+项目-修证实践
+
+## **Area** 领域
+
+Ongoing responsibilities and areas of focus
+
+关键词列表：
+
+领域
+
+## **Resource** 资源
+
+Topics and interests for future reference
+
+资源
+
+资源-obsidian
+
+## **Archive** 归档
+
+Completed projects and inactive items
+
+关键词列表：
+
+归档
+
+参考：[[PARA方法和标签大法]]