Update CLAUDE.md with new pathway data architecture:
- Add Pathway Data Architecture section with date filter table
- Update package structure with cli/ and pathway_pipeline.py
- Add CLI module and pathway pipeline documentation
- Update data flow diagrams (pre-computed vs legacy)
- Add pathway tables to database schema section
- Add CLI commands section with usage examples
- Add Breaking Changes section documenting:
- Date filter changes (pickers -> dropdowns)
- Data refresh model (real-time -> pre-computed)
- State variable changes
- Icicle chart enhancements
Mark all Task 4.3 subtasks complete in IMPLEMENTATION_PLAN.md
Update completion criteria status
Andrew Charlwood