docs: generate OAS for v2 (#7883)

www/apps/api-reference/specs/admin/components/schemas/AdminCollection.yaml

@@ -0,0 +1,39 @@
+type: object
+description: The parent's collection.
+x-schemaName: AdminCollection
+properties:
+  id:
+    type: string
+    title: id
+    description: The collection's ID.
+  title:
+    type: string
+    title: title
+    description: The collection's title.
+  handle:
+    type: string
+    title: handle
+    description: The collection's handle.
+  created_at:
+    type: string
+    format: date-time
+    title: created_at
+    description: The collection's created at.
+  updated_at:
+    type: string
+    format: date-time
+    title: updated_at
+    description: The collection's updated at.
+  deleted_at:
+    type: string
+    format: date-time
+    title: deleted_at
+    description: The collection's deleted at.
+  products:
+    type: array
+    description: The collection's products.
+    items:
+      type: object
+  metadata:
+    type: object
+    description: The collection's metadata.