feat(medusa,product,types): product type & tag store missing endpoints (#11057)

* wip: tag endpoints

* feat: types, product types

* feat: tests

* fix: update product type schema

packages/modules/product/src/models/product-type.ts

@@ -6,7 +6,7 @@ const ProductType = model
     id: model.id({ prefix: "ptyp" }).primaryKey(),
     value: model.text().searchable(),
     metadata: model.json().nullable(),
-    product: model.hasMany(() => Product, {
+    products: model.hasMany(() => Product, {
       mappedBy: "type",
     }),
   })

packages/modules/product/src/models/product.ts

@@ -36,7 +36,7 @@ const Product = model
     }),
     type: model
       .belongsTo(() => ProductType, {
-        mappedBy: "product",
+        mappedBy: "products",
       })
       .nullable(),
     tags: model.manyToMany(() => ProductTag, {