chore: Update OpenAPI specs (#277)

Author: bdbyrne

fern/apis/beta/changelog/2025-07-29.md

@@ -0,0 +1,16 @@
+## New Endpoints
+
+### Vistas
+- [`/vistas.create`](/beta/api-reference/vistas/create): Creates a vista
+  - Initial support for `meetings` vistas
+
+## Modified Endpoints
+
+### Articles
+- Added field `parent` to [`/articles.list`](/beta/api-reference/articles/list-articles-post)
+- Added field `parent` to [`/articles.count`](/beta/api-reference/articles/count-post)
+
+### Customization
+- Added fields to [`/schemas.aggregated.get`](/beta/api-reference/customization/aggregated-schema-get):
+  - `custom_schema_fragments`
+  - `stock_schema_fragment`

fern/apis/beta/generators.yml

@@ -1,6 +1,7 @@
 api:
   specs:
     - openapi: ./openapi-beta.yaml
+      overrides: ./overrides.yml
 groups:
   ts-sdk:
     audiences: