chore: Remove _jamie-reference-raw-data directory

- Delete raw source materials directory (not needed in repo)
- Update CLAUDE.md to remove references to deleted directory

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -11,7 +11,6 @@ This is a Claude Skills collection repository containing:
 - **claude-skills-examples/**: Reference examples from Anthropic's official skills repository
 - **official-skils-collection/**: Notion integration skills (3rd party)
 - **reference/**: Skill format requirements documentation
-- **_jamie-reference-raw-data/**: Source materials for Jamie skills (not part of skills)
 
 ## Custom Skills Summary
 
@@ -105,8 +104,7 @@ claude-skills-factory/
 │   ├── algorithmic-art/
 │   └── ...
 ├── official-skils-collection/       # 3rd party Notion skills
-├── reference/                       # Format documentation
-└── _jamie-reference-raw-data/       # Jamie source materials
+└── reference/                       # Format documentation
 ```
 
 ## Key Reference Files