- Add stock_picking_batch dependency to manifest
- Add cutoff date validation in _confirm_linked_sale_orders()
- Create _create_picking_batches_for_sale_orders() method
- Group pickings by consumer_group_id into separate batches
- Set batch scheduled_date from group order pickup_date
- Add test_cron_picking_batch.py with 7 tests covering:
- Skip orders before cutoff
- Confirm orders after cutoff
- Separate batches per consumer group
- Same group orders in same batch
- Batch has scheduled_date
- No duplicate batches on re-run
- Closed group orders not processed
