New Features
- add configurable composer shortcuts (model / access / reasoning) (#95)
- persist composer model and reasoning effort selections (#94)
- enhance PR diff header and timeline
- Add PR summary header to diff viewer (#91)
- Add staged/unstaged sections and file actions to Git diff panel (#90)
- add file-link context menu with reveal (#81)
Fixes
- remove unused pr created label
- worktree dialog black background (#89)