change migration create_categories to handle staging
change migration create_categories to handle staging
[#56228024] add feature validate_a_task
[#56228024] add accept_at and rejected_at to Delivery
[#56228024] add status to Delivery
[#56228024] add accept, reject and deliver actions to deliveries
[#56228024] add links to admin to accept and reject deliveries
[#56228024] add warns and buttons for task status