BizCore v6.1.3 SAFE
- Fixes Category/Brand/Unit inline Add JSON + CSRF mismatch.
- Adds ledger-safe warehouse stock quantity controls to Item Edit.
- Aggregates published Mundo products across the company's Mundo workspace channels.
- Keeps zero-stock products visible as Out of Stock.
- Adds Notify Me restock request foundation.
- Fixes category/brand/custom-image fields in Mundo catalog API.
No existing stock, purchasing, finance or Mundo records are deleted/reset.
