Update changelogs from fern repo (#6519)

Co-authored-by: thesandlord <8902396+thesandlord@users.noreply.github.com>

Author: thesandlord

fern/products/sdks/generators/typescript/changelog/2026-08-03.mdx

@@ -0,0 +1,8 @@
+## 3.87.0
+**`(feat):`** Add a `requireBaseUrl` config option. When enabled, `baseUrl` is a required client option and
+`environment` is optional, for APIs whose users always pass an explicit server URL. Generated
+snippets, README, and wire tests use `baseUrl` accordingly. The option is ignored for APIs with
+multiple base URLs, whose clients resolve each URL from `environment`. Defaults to `false`, so
+existing SDKs are unchanged.
+
+