feat(*): Modules export entities and fields (#5242)

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

@@ -133,6 +133,10 @@ export type ModuleJoinerConfig = Omit<
   JoinerServiceConfig,
   "serviceName" | "primaryKeys" | "relationships" | "extends"
 > & {
+  /**
+   * GraphQL schema for the all module's available entities and fields
+   */
+  schema?: string
   relationships?: ModuleJoinerRelationship[]
   extends?: {
     serviceName: string
@@ -153,9 +157,9 @@ export type ModuleJoinerConfig = Omit<
    */
   isLink?: boolean
   /**
-   * Keys that can be used to link to other modules
+   * Keys that can be used to link to other modules. e.g { product_id: "Product" } "Product" being the entity it refers to
    */
-  linkableKeys?: string[]
+  linkableKeys?: Record<string, string>
   /**
    * If true it expands a RemoteQuery property but doesn't create a pivot table
    */