Update changelogs from fern repo (#5138)

Co-authored-by: dsinghvi <10870189+dsinghvi@users.noreply.github.com>

Author: fern-support

fern/products/cli-api-reference/cli-changelog/2026-04-24.mdx

@@ -1,3 +1,12 @@
+## 4.94.1
+**`(fix):`** Fix global theme asset downloads preserving original filenames and extensions.
+Previously, assets downloaded from S3 CAS URLs (whose pathname is a raw content
+hash) were saved without a file extension, breaking downstream MIME type detection.
+The CLI now reads the filename from the presigned URL's response-content-disposition
+query parameter, falling back to the Content-Disposition response header, then
+Content-Type, so files land on disk with their correct names (e.g. logo.svg).
+
+
 ## 4.94.0
 **`(feat):`** Add consumer-side support for the `global-theme` key in docs.yml. When a docs site
 declares `global-theme: <name>`, the CLI fetches the named theme from Fern's cloud