Move collection description rendering to JSON (#6944)

* First pass, moving collection description rendering to JSON

* tsc

* docs

* refactor

* test

server/presenters/collection.ts

@@ -1,13 +1,21 @@
 import { colorPalette } from "@shared/utils/collections";
 import Collection from "@server/models/Collection";
+import { DocumentHelper } from "@server/models/helpers/DocumentHelper";
+import { APIContext } from "@server/types";
+
+export default async function presentCollection(
+  ctx: APIContext | undefined,
+  collection: Collection
+) {
+  const asData = !ctx || Number(ctx?.headers["x-api-version"] ?? 0) >= 3;
 
-export default function presentCollection(collection: Collection) {
   return {
     id: collection.id,
     url: collection.url,
     urlId: collection.urlId,
     name: collection.name,
-    description: collection.description,
+    data: asData ? await DocumentHelper.toJSON(collection) : undefined,
+    description: asData ? undefined : collection.description,
     sort: collection.sort,
     icon: collection.icon,
     index: collection.index,