19f35ba6aa
**What** - Add `transformQuery` to get endpoints for product, order and cart - ensure that the default relations (when getting a singular entity) includes sales channels when enabled - Add `EmptyQueryParams` class in common types to prevent query parameters while using `transformQuery` - update product-, order- and cartFactory to include sales channels if provided - remove `packages/medusa/src/controllers/products/admin-list-products.ts` **Testing** - expands sales channel for single order - expands sales channels for orders with expand parameter - returns single product with sales channel - expands sales channels for products with expand parameter - returns cart with sales channel for single cart Fixes CORE-293 Co-authored-by: Sebastian Rindom <7554214+srindom@users.noreply.github.com> Co-authored-by: Adrien de Peretti <25098370+adrien2p@users.noreply.github.com>