Ensure that order auto-closer does its job correctly

[Deele]

• [ ] Auto-closer to check interval - once per day during the night
• [ ] 2 weeks after last proposal update date of order in status "open" will be automatically "cancelled" (to remove inactive orders)
• [ ] 48 hours before preferred delivery date of order in status "open" will be automatically "proposals locked" (to avoid last-minute changes and allow provider to get ready)
• [ ] 1 hours after approved delivery date of order in status "proposal approved" will be automatically "cancelled" (to remove not paid orders with overdue date)