Supported products include for Members Admin API

refs https://github.com/TryGhost/Team/issues/616

This allows us to check which products a Member has access to, without
having to check the subscriptions array.

core/server/api/canary/members.js

@@ -10,7 +10,7 @@ const settingsCache = require('../../services/settings/cache');
 const {i18n} = require('../../lib/common');
 const _ = require('lodash');
 
-const allowedIncludes = ['email_recipients'];
+const allowedIncludes = ['email_recipients', 'products'];
 
 module.exports = {
     docName: 'members',

core/server/api/canary/utils/serializers/output/members.js

@@ -94,7 +94,7 @@ function serializeMember(member, options) {
     }
     const subscriptions = json.subscriptions || [];
 
-    return {
+    const serialized = {
         id: json.id,
         uuid: json.uuid,
         email: json.email,
@@ -114,6 +114,12 @@ function serializeMember(member, options) {
         email_recipients: json.email_recipients,
         status: json.status
     };
+
+    if (json.products) {
+        serialized.products = json.products;
+    }
+
+    return serialized;
 }
 
 /**
@@ -154,6 +160,7 @@ function createSerializer(debugString, serialize) {
  * @prop {string} updated_at
  * @prop {string[]} labels
  * @prop {SerializedMemberStripeSubscription[]} subscriptions
+ * @prop {SerializedMemberProduct[]=} products
  * @prop {string} avatar_image
  * @prop {boolean} comped
  * @prop {number} email_count
@@ -163,6 +170,13 @@ function createSerializer(debugString, serialize) {
  * @prop {'free'|'paid'} status
  */
 
+/**
+ * @typedef {Object} SerializedMemberProduct
+ * @prop {string} id
+ * @prop {string} name
+ * @prop {string} slug
+ */
+
 /**
  * @typedef {Object} SerializedMemberStripeData
  * @prop {SerializedMemberStripeSubscription[]} subscriptions