fix: Medusa service base method transaction (#7758)

**What**
Remove transaction decorator from the base medusa service method, the transaction will always be coming from the shared context. It fixes the issue that when you consume a base method directly it will return a proper tuple from the DB instead of the one from the entity map cc @VariableVic 

**NOTE**
This pr also fix some categories issues in the product module which was preventing the tests from working. if @sradevski you could have a look later, in the mean time we can still merge it

FIXES CORE-2342

packages/modules/product/src/services/product-category.ts

@@ -3,10 +3,10 @@ import {
   FreeTextSearchFilterKey,
   InjectManager,
   InjectTransactionManager,
+  isDefined,
   MedusaContext,
   MedusaError,
   ModulesSdkUtils,
-  isDefined,
 } from "@medusajs/utils"
 import { ProductCategory } from "@models"
 import { ProductCategoryRepository } from "@repositories"
@@ -169,6 +169,7 @@ export default class ProductCategoryService<
     await this.productCategoryRepository_.delete(ids, sharedContext)
   }
 
+  @InjectTransactionManager("productCategoryRepository_")
   async softDelete(
     ids: string[],
     @MedusaContext() sharedContext?: Context
@@ -178,6 +179,7 @@ export default class ProductCategoryService<
     ).softDelete(ids, sharedContext)) as any
   }
 
+  @InjectTransactionManager("productCategoryRepository_")
   async restore(
     ids: string[],
     @MedusaContext() sharedContext?: Context