## Changes

- Added a dedicated Codex Threads sidebar view for browsing non-archived threads, live open-panel status, and quick resume.
- Restored open Codex Panel threads from Obsidian workspace state without blocking startup.
- Unified thread resume behavior so already-open threads are focused instead of duplicated, while idle empty panels can be reused.
- Renamed the new-chat command and composer action to "Start new chat" and kept empty panels unstarted until the first message is sent.
- Improved thread history, rename, archive, and slash command behavior for clearer thread lifecycle handling.
