Update changelogs from fern repo (#5400)

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

Author: fern-support

fern/products/cli-api-reference/cli-changelog/2026-05-05.mdx

@@ -1,3 +1,7 @@
+## 5.15.1
+**`(fix):`** Source `org_id` on the replay PostHog event from `fern.config.json` (the project organization slug, like every other CLI flow), not from a Venus token lookup.
+
+
 ## 5.15.0
 **`(feat):`** Bake replay initialization into `fern generate`. Repos with a prior `[fern-generated]`
 commit but no `.fern/replay.lock` now auto-bootstrap inline during the post-generation