chore: move to swc/jest (#7739)

* chore: move to swc

* chore: fix tax rate tests

* chore: undo failed test

* chore: fix unit tests script

* chore: use node 20

* Update scripts/run-workspace-unit-tests-in-chunks.sh

packages/core/modules-sdk/src/medusa-module.ts

@@ -84,7 +84,7 @@ export type RegisterModuleJoinerConfig =
   | ModuleJoinerConfig
   | ((modules: ModuleJoinerConfig[]) => ModuleJoinerConfig)
 
-export class MedusaModule {
+class MedusaModule {
   private static instances_: Map<string, { [key: string]: IModuleService }> =
     new Map()
   private static modules_: Map<string, ModuleAlias[]> = new Map()
@@ -589,4 +589,6 @@ export class MedusaModule {
 }
 
 global.MedusaModule ??= MedusaModule
-exports.MedusaModule = global.MedusaModule
+const GlobalMedusaModule = global.MedusaModule as typeof MedusaModule
+
+export { GlobalMedusaModule as MedusaModule }

packages/core/modules-sdk/src/remote-link.ts

@@ -63,7 +63,7 @@ export class RemoteLink {
       )
     }
 
-    for (const mod of modulesLoaded) {
+    for (const mod of modulesLoaded || []) {
       this.addModule(mod)
     }
   }

packages/core/modules-sdk/src/remote-query.ts

@@ -39,7 +39,7 @@ export class RemoteQuery {
       )
     }
 
-    for (const mod of modulesLoaded) {
+    for (const mod of modulesLoaded || []) {
       if (!mod.__definition.isQueryable) {
         continue
       }