add Medusa Cloud Email provider (medusajs#13781)

* add Medusa Cloud Email provider

* move cloud config to project level

* add tests

* Create breezy-flowers-fly.md

* rename medusa_cloud_config to cloud

---------

Co-authored-by: Oli Juhl <[email protected]>

Author: peterlgh7

.changeset/breezy-flowers-fly.md

@@ -0,0 +1,8 @@
+---
+"@medusajs/notification": patch
+"@medusajs/payment": patch
+"@medusajs/types": patch
+"@medusajs/utils": patch
+---
+
+add Medusa Cloud Email provider

packages/core/types/src/common/config-module.ts

@@ -213,6 +213,26 @@ export type HttpCompressionOptions = {
   threshold?: number | string
 }
 
+/**
+ * @interface
+ *
+ * Medusa Cloud configurations.
+ */
+export type MedusaCloudOptions = {
+  /**
+   * The environment handle of the Medusa Cloud environment.
+   */
+  environmentHandle?: string
+  /**
+   * The API key used to access Medusa Cloud services.
+   */
+  apiKey?: string
+  /**
+   * The endpoint of the Medusa Cloud email service.
+   */
+  emailsEndpoint?: string
+}
+
 /**
  * @interface
  *
@@ -865,6 +885,12 @@ export type ProjectConfigOptions = {
       /*admin?: string[]*/
     }
   }
+
+  /**
+   * This property holds configurations for running in Medusa Cloud.
+   * It gets automatically populated in the cloud, and is not needed outside of it.
+   */
+  medusaCloudOptions?: MedusaCloudOptions
 }
 
 /**