- Created bible/ with hierarchical documentation (architecture, pricelists,
vendor mapping, background tasks, data rules, patterns, API, operations, history)
- CLAUDE.md reduced to one instruction: read and follow the bible
- README.md reduced to quick start only
- Removed MEMORY.md and csv_export.md (content consolidated into bible/)
- Fixed stale facts found during audit: weighted_avg (not weighted_median),
correct API route names (/export-csv, /recalculate-all)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>