Working Lunch Minutes Reports Update

Extract this ZIP inside /home/uent/public_html/ and overwrite files.

This update makes the backoffice reports use work_session_events.worked_minutes:
- 15 selected = 45 minutes lunch deducted
- 30 selected = 30 minutes lunch deducted
- 45 selected = 15 minutes lunch deducted
- 60 selected = 0 minutes lunch deducted

Updated areas:
- Sessions: shows lunch worked minutes and adjusted worked hours
- Monthly Summary: shows lunch worked time and adjusted daily/period totals
- Date Range Report: shows lunch worked time and adjusted totals
- Staff Hours: shows lunch worked time in selected staff and team summaries
- Lifetime Stats: shows all-time lunch worked time
- Central calculation function: passes worked_lunch_minutes through every report metric

No SQL is included here. You already added the worked_minutes column.
