[IMP] stock_picking_batch_collect: collected checks on transfers, ordered quantity, delivery slips report

- The collected checks also apply to transfers outside a batch, opt-in per
  operation type ("Require Collected Lines"), with the batch restrictions of
  the settings. A per-product toggle in the transfer's Operations tab collects
  all its lines.
- Read-only ordered quantity from the sale line on every batch and transfer
  view, since the weighed demand overwrites it. Adds a dependency on
  sale_stock; a migration fills it in the summary of open batches.
- "Delivery Slips" report on the batch: all its delivery slips in one PDF.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

stock_picking_batch_collect/models/__init__.py

@@ -1,6 +1,8 @@
 from . import res_company  # noqa: F401
 from . import res_config_settings  # noqa: F401
 from . import stock_backorder_confirmation  # noqa: F401
+from . import stock_move  # noqa: F401
 from . import stock_move_line  # noqa: F401
 from . import stock_picking  # noqa: F401
 from . import stock_picking_batch  # noqa: F401
+from . import stock_picking_type  # noqa: F401