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