- Create docs/project-lessons-learned/ for local lesson storage
- Add INDEX.md with lesson template and index table
- Document Phase 4 dbt test syntax deprecation lesson
- Update CLAUDE.md with backup method when Wiki.js unavailable
This provides a fallback for capturing lessons learned while
Wiki.js integration is being configured.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>