Improved Rule Handling for Optional Control Group in Virtual Catalog Updates

In our domain model, the Control Group reference field in a Virtual Catalog is optional. However, prior to this release, rules within the inventory module which calculate base and aggregate virtual positions required the presence of a Control Group reference.
This release removes that dependency, ensuring that controls are only applied when a Control Group reference is configured against the Virtual Catalog.

Inventory Module enhancements:

• The following rules have been updated in the inventory module to apply control-specific logic only if a control group reference is provided; otherwise, no controls are applied:
  - CreateBaseVirtualPosition
  - UpdateBaseVirtualPosition
  - CreateAggregateVirtualPosition
  - UpdateAggregateVirtualPosition