- Updated `_normalize_metric_value_for_read` to compact numeric strings and ensure consistent formatting for string data types.
- Enhanced `normalize_prompt_number` to handle numeric strings and non-finite float values effectively.
- Improved unit tests to validate the new normalization behavior for session metrics and scalar formatting.
- Introduced `format_scalar_for_prompt_text` function to standardize the representation of scalar values in activity summaries and details.
- Updated `get_activity_summary` and `get_activity_detail` functions to utilize the new formatting for improved readability.
- Added normalization for float values in session metrics to prevent excessively long representations.
- Enhanced unit tests to verify the new formatting and normalization behavior.
- Integrated compact JSON payload generation for session metrics in `get_training_sessions_recent_weeks_data`.
- Updated the registration of activity session insights to reflect the new compact format for session metrics.
- Improved documentation to clarify the structure and semantics of the session metrics in the JSON output.
- Added normalization for prompt numbers to ensure consistent formatting in the metrics.
