Include the schedule data date (last_recalc_date from XER) in the get_project_summary tool response. This shows when the schedule was last calculated in P6. Changes: - Add last_recalc_date column to projects table schema - Parse last_recalc_date in PROJECT table handler - Include last_recalc_date in db loader - Return data_date field in get_project_summary query - Update contract test to verify data_date presence