- Added new updates for Phase A and Phase B in `CLAUDE.md`, detailing the completion of Phase A and the introduction of enriched session metrics in the API response for `GET /api/activity`.
- Enhanced the README to include references to new documentation files for scalar canon and composite metrics implementation.
- Updated `ACTIVITY_PRODUCTION_ARCHITECTURE_AND_PHASES.md` to reflect the current status of phases and added navigation rules for data access.
- Improved `ACTIVITY_SESSION_METRICS_EAV_AGENT_GUIDE.md` with links to new implementation concepts for composite metrics.
- Refactored the activity router to integrate enriched session metrics into the activity list responses, ensuring a more comprehensive data presentation.
