fix(ask_sb): Fix long generation times on first message in thread (#447)

Author: brendan-kellam

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 - Removed prefix from structured log output. [#443](https://github.com/sourcebot-dev/sourcebot/pull/443)
+- [ask sb] Fixed long generation times for first message in a chat thread. [#447](https://github.com/sourcebot-dev/sourcebot/pull/447)
 
 ### Changed
 - Bumped AI SDK and associated packages version. [#444](https://github.com/sourcebot-dev/sourcebot/pull/444)