- Add DEFAULT_LLM_MODEL to environment variables section
- Update code examples to use settings.DEFAULT_LLM_MODEL instead of hardcoded model name
- Aligns with code refactoring to remove hardcoded model names
- 7-8월 초기 구축 문서 12개를 _archive/troubleshooting/2025_07-08_initial_setup/로 이동
- book/300_architecture/390_human_in_the_loop_intent_learning.md를 journey/research/intent_classification/로 이동 (개발 여정 문서)
- 빈 폴더 제거 (journey/assets/*)