fix: Loading custom modules (#6411)

What:
   fix custom modules loading in medusa project
   pass medusa logger reference to MedusaApp

packages/medusa/src/loaders/medusa-app.ts

@@ -10,6 +10,7 @@ import {
 import {
   CommonTypes,
   InternalModuleDeclaration,
+  LoadedModule,
   MedusaContainer,
   ModuleDefinition,
 } from "@medusajs/types"
@@ -54,12 +55,13 @@ export async function migrateMedusaApp(
   },
   config = { registerInContainer: true }
 ): Promise<void> {
-  const featureFlagRouter = container.resolve<FlagRouter>("featureFlagRouter")
-  const isMedusaV2Enabled = featureFlagRouter.isFeatureEnabled(MedusaV2Flag.key)
   const injectedDependencies = {
     [ContainerRegistrationKeys.PG_CONNECTION]: container.resolve(
       ContainerRegistrationKeys.PG_CONNECTION
     ),
+    [ContainerRegistrationKeys.LOGGER]: container.resolve(
+      ContainerRegistrationKeys.LOGGER
+    ),
   }
 
   const sharedResourcesConfig = {
@@ -73,7 +75,7 @@ export async function migrateMedusaApp(
 
   // Apply default options to legacy modules
   for (const moduleKey of Object.keys(configModules)) {
-    if (!ModulesDefinition[moduleKey].isLegacy) {
+    if (!ModulesDefinition[moduleKey]?.isLegacy) {
       continue
     }
 
@@ -121,6 +123,9 @@ export const loadMedusaApp = async (
     [ContainerRegistrationKeys.PG_CONNECTION]: container.resolve(
       ContainerRegistrationKeys.PG_CONNECTION
     ),
+    [ContainerRegistrationKeys.LOGGER]: container.resolve(
+      ContainerRegistrationKeys.LOGGER
+    ),
   }
 
   const sharedResourcesConfig = {
@@ -137,7 +142,7 @@ export const loadMedusaApp = async (
 
   // Apply default options to legacy modules
   for (const moduleKey of Object.keys(configModules)) {
-    if (!ModulesDefinition[moduleKey].isLegacy) {
+    if (!ModulesDefinition[moduleKey]?.isLegacy) {
       continue
     }
 
@@ -202,9 +207,10 @@ export const loadMedusaApp = async (
     asValue(medusaApp.query)
   )
 
-  for (const [serviceKey, moduleService] of Object.entries(medusaApp.modules)) {
+  for (const moduleService of Object.values(medusaApp.modules)) {
+    const loadedModule = moduleService as LoadedModule
     container.register(
-      ModulesDefinition[serviceKey].registrationName,
+      loadedModule.__definition.registrationName,
       asValue(moduleService)
     )
   }