chore(core-flows,modules-sdk): add TSDocs to helper steps (#8355)

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

@@ -9,11 +9,22 @@ import { MedusaModule } from "./medusa-module"
 import { convertRecordsToLinkDefinition } from "./utils/convert-data-to-link-definition"
 import { linkingErrorMessage } from "./utils/linking-error"
 
+/**
+ * The details of a data model's record whose linked records should be deleted. Usually used after the
+ * data model's record is deleted.
+ * 
+ * The key is the data model's name. Its value is an object that has the ID of the data model's record.
+ */
 export type DeleteEntityInput = {
   [moduleName: string | Modules]: Record<string, string | string[]>
 }
 export type RestoreEntityInput = DeleteEntityInput
 
+/**
+ * A link for two records of linked data models.
+ * 
+ * The keys are the names of each module, and their value is an object that holds the ID of the linked data model's record.
+ */
 export type LinkDefinition = {
   [moduleName: string]: {
     // TODO: changing this to any temporarily as the "data" attribute is not being picked up correctly