fix(link-modules): Fix link module initialization (#4990)

**What**
Add a new configuration on the relationship to specify if the relation is consumed from an internal service (from medusa core). In that case do not check if the service is part of the loaded modules

.changeset/stupid-terms-ring.md

@@ -0,0 +1,6 @@
+---
+"@medusajs/link-modules": patch
+"@medusajs/types": patch
+---
+
+fix(link-modules): Fix link module initialization

packages/link-modules/src/definitions/index.ts

@@ -1,3 +1,4 @@
 export * from "./inventory-level-stock-location"
 export * from "./product-variant-inventory-item"
 export * from "./product-variant-money-amount"
+export * from "./product-shipping-profile"

packages/link-modules/src/definitions/product-shipping-profile.ts

@@ -24,9 +24,10 @@ export const ProductShippingProfile: ModuleJoinerConfig = {
     },
     {
       serviceName: "shippingProfileService",
+      isInternalService: true,
       primaryKey: "id",
       foreignKey: "profile_id",
-      alias: "shipping_profile",
+      alias: "profile",
     },
   ],
   extends: [

packages/link-modules/src/initialize/index.ts

@@ -90,8 +90,10 @@ export const initialize = async (
         continue
       }
     } else if (
-      !modulesLoadedKeys.includes(primary.serviceName) ||
+      (!primary.isInternalService &&
-      !modulesLoadedKeys.includes(foreign.serviceName)
+        !modulesLoadedKeys.includes(primary.serviceName)) ||
+      (!foreign.isInternalService &&
+        !modulesLoadedKeys.includes(foreign.serviceName))
     ) {
       continue
     }
@@ -176,8 +178,10 @@ export async function runMigrations(
     allLinks.add(serviceKey)
 
     if (
-      !modulesLoadedKeys.includes(primary.serviceName) ||
+      (!primary.isInternalService &&
-      !modulesLoadedKeys.includes(foreign.serviceName)
+        !modulesLoadedKeys.includes(primary.serviceName)) ||
+      (!foreign.isInternalService &&
+        !modulesLoadedKeys.includes(foreign.serviceName))
     ) {
       continue
     }

packages/types/src/modules-sdk/index.ts

@@ -168,6 +168,7 @@ export type ModuleJoinerConfig = Omit<
 }
 
 export declare type ModuleJoinerRelationship = JoinerRelationship & {
+  isInternalService?: boolean // If true, the relationship is an internal service from the medusa core TODO: Remove when there are no more "internal" services
   deleteCascade?: boolean // If true, the link joiner will cascade deleting the relationship
 }