## Changes

- Added message-level fork actions so a conversation can be forked from a specific assistant or user message.
- Added optional composer boundary shortcuts for scrolling the thread from the first or last composer line, plus PageUp and PageDown thread scrolling.
- Improved thread lifecycle updates so newly started threads appear immediately and archived threads close or refresh consistently across chat panels and the Threads view.
- Updated Codex App Server bindings for Codex CLI 0.135 and refined live agent activity/status rendering.
