- Added details for Issue #53 regarding the audit of activity placeholders between Layer 1 and Layer 2a in `CLAUDE.md` and `README.md`.
- Updated the `ACTIVITY_SESSION_METRICS_EAV_AGENT_GUIDE.md` to reflect the new registry checks and dynamic session metrics handling.
- Revised the `placeholder_resolver.py` and `activity_metrics.py` to clarify the registration of activity metrics and session insights, ensuring consistency in the handling of dynamic keys and metrics.
- Improved descriptions and semantic contracts in `activity_session_insights.py` to better outline the structure and limitations of session data.
- Updated the `get_activity_detail` function to include session metrics in the activity detail output, allowing for enriched data representation.
- Refactored the activity import logic to streamline the process of inserting and updating activity records, utilizing new helper functions for better maintainability.
- Improved the handling of duplicate activity entries by implementing a more robust identification mechanism.
- Enhanced the metadata for activity detail registration to reflect the inclusion of EAV metrics and updated source tables.
- Added new functions for BMI and goal weight/body fat percentage retrieval in `body_metrics.py`.
- Introduced training frequency and inter-session gap calculations in `activity_metrics.py`.
- Updated placeholder registrations to include new metrics for nutrition and activity.
- Improved data handling in `placeholder_resolver.py` for better integration of new metrics.
- Enhanced documentation across modules to reflect the new functionalities.
These updates improve the accuracy and comprehensiveness of health and fitness assessments within the application.
